Arthur.

Threads keyword search gives each user 2,200 queries per rolling day, and public posts only after Meta approves it. What you can poll, keep and reply to.

Shadow Inbox, Linkeddit, Buska, Syften and F5Bot compared on sources, AI intent scoring, alerts and price, read off each vendor's own site on 13 October 2026.

YouTube's API reads comments at 1 unit a call and gives search its own 100-a-day bucket. What you can poll, what you can store, and where replies get flagged.

Show HN rules for a SaaS launch: why a signup wall costs you feedback, what HN's 2026 new-account limit says, and what to do before you post.

A ranked list of 20 buyer intent tools for founders without an enterprise budget, scored on six published criteria, with dated prices and each tool's limits.

Google counts subdomains as one sender, and Postmaster Tools shows nothing at low volume. When a separate cold email domain earns its keep, and when it doesn't.

Reddit has no ban on AI-written replies, but it labels bots, names AI tools in its spam policy, and now verifies humans. Where a founder's workflow lands.

Legal in the UK, conditional in the EU, consent-first in Germany. What B2B cold email needs under GDPR, checked against the ICO and the statute text.

The FTC just handed out its largest cold email fine ever. Here's what CAN-SPAM actually requires, verified against the FTC's own compliance guide.

Google's own spam filter docs name zero AI-authorship signals. Here's what actually gets a cold email flagged, and it isn't the model that wrote it.

Reddit's 2024 policy requires a contract for commercial data use and just sued Perplexity over it. Here's what CFAA and GDPR actually let you do.

Microsoft's 550 5.7.515 error targets senders doing 5,000+ emails a day. Founders sending 20 a day are getting bounced too. Here's the actual cause.

Indie Hackers' own terms ban the scrape, the unofficial RSS mirrors don't fix that, and unlike Quora or X there's no paid firehose to buy instead.

G2's terms ban automated review scraping outright. Here's the free tool, the paid one, and what's actually left for catching competitor switching signals.

Quora shut down its RSS feeds and its terms ban automated collection outright. Here's what's actually left for founders hunting buying signals there.

HN wrote its unwritten rule down: no AI-generated comments. If you reply to buying signals there, the bar for sounding human just got official.

Meta shut down the Groups API for good in April 2024. Here's what's actually left for a founder trying to catch buying signals inside Facebook Groups.

GitHub's REST search covers issues and pull requests. Discussions live behind a separate GraphQL budget, and the reply rules differ by repo.

Product Hunt's API bans commercial use by default, and its own guidelines erase self-promotion in comments. Here's the room built for the pitch.

Original data from 975 Ask HN posts and 20 subreddits: median time to first reply on a buying-intent post was 16 minutes, 92 percent were answered inside an hour, and every intent post on Reddit came from an operator community, none from a builder one.

Slack caps outside apps at 15 messages a minute, and its API terms ban using one community's data for your pipeline. Here is what a founder can still run.

Bluesky streams every public post over one unauthenticated socket. We sampled 20 minutes of it and counted what a founder could actually reply to.

X charges half a cent per post read. The arithmetic on whether a keyword monitor on X pays for itself, and the point where it stops.

The best-known Reddit research tool closed to comply with Reddit's API rules. What that leaves you, and the question to ask every tool still standing.

Most Discord lead-gen advice quietly breaks Discord's own Developer Policy. What rules 5, 6, 7 and 20 actually say, and the motion that survives them.

Fifteen tools for getting content seen across social platforms — schedulers, repurposing, listening, newsletter. What each is good at. Not a ranking.

Fifteen lead generation tools across prospecting, outbound, intent, and inbound — what each is good at, what it's bad at, who it fits. Not a ranking.

Christmas shoppers ask ChatGPT for gift ideas. If OAI-SearchBot can't crawl your products, you're invisible. The 2026 listing playbook.

Most cold email A/B test lifts are sample-size theater. The timing variable swamps copy variance. Here's what's actually testable in 2026.

Find paying clients on Reddit by being early, useful, and specific — not by spamming DMs. The honest 2026 playbook for freelancers and agencies.

The math of why 1,000-DM campaigns produce nothing in 2026, the platform mechanics that broke them, and what 'volume done right' looks like — 30 contextual DMs vs 1,000 templated.

First-person take on LinkedIn outreach in 2026: what mass-connect-and-pitch automation killed, what's safe and scaling, and the intent-driven motion that survived.

Paid ads in the lead-gen toolkit: when ads work cleanly, when they quietly fail, the CAC math vs intent-based outbound, and why blended programs win in 2026.

Buyer intent is the new marketing: revealed demand vs manufactured demand, what intent-based marketing looks like operationally, and the org-design implications.

Cold email didn't die in 2019. It died in February 2024 when Google and Yahoo rewrote sender rules. Here's what survived, the reply-rate math you can plan against, and where the trigger has to come from.

LinkedIn buying intent is real, sparse, and hidden behind API limits. Here's the exact signals we watch, the signals we ignore, and the pipeline that makes the channel work.

The signal economy: why intent-based outbound beats volume in 2026, the new operator stack, and where real-time intent graphs go from here.

An outbound agency booked roughly 40 calls in 60 days from Reddit alone. Full timeline, weekly numbers, the ban scare, and what they kept after.

Ninety days of Shadow Inbox data: signal volume per platform, niche intent density, conversion funnel from signal to call, and the surprises we didn't expect.

Honest cost breakdown of building sales intelligence in-house vs buying. Scraping infra, LLM APIs, classifier engineering, enrichment, maintenance — actual numbers.

HackerNews monitoring with the Algolia API, a cron, and an optional LLM filter. The full setup costs nothing and replaces the $5K SDR tool you almost bought.

Ten extractable signals separate a buyer post from a vent post on Reddit. Here's how we score each one, the thresholds, and the false-positive traps.

We built Shadow Inbox with OpenClaw, an AI agent factory. Here's the agent role split, the 1-week MVP, the surprises, and what we'd do differently.

AI reply generators face a dilemma: fast and cheap is templated-with-extra-steps, slow and personalized is barely better. The third mode no one is building.

When the trigger is a social post, the right sequence is original-channel reply first, then email, then LinkedIn. Conversion math at every step.

Outbound timing playbook: signal half-life on Reddit, HN, and LinkedIn, what makes a buying signal hot vs cold, and the daily ritual to catch the hot window.

HN's Who's Hiring thread is a buying-signal goldmine. Full workflow: scrape, parse stack, identify fit, send a 3-line cold email referencing the JD.

Reddit reply strategy for founders: why most marketing advice gets you banned, how moderators actually think, and the disclosure pattern that earns upvotes.

Reddit username to verified work email in 90 seconds. The exact enrichment pipeline, the realistic hit rate, and the fallback branch when there's no LinkedIn.

Classifying buying intent with LLMs is mostly about evidence quotation, temperature pinning, and not asking the model dumb questions. Here's what worked for us.

Contextual cold message playbook: how to reference a specific Reddit post in outbound without being creepy, with two annotated samples and a four-part anatomy.

The reply rate math broken down input by input: 500 templated cold emails versus 20 contextual messages. Per-message ROI is 60x. Here's the calculation.

HackerNews comments hold richer buying intent than the front page. The 4 comment patterns that signal active evaluation, and how to engage without getting flamed.

Subreddit mapping for 12 niches: the exact subs and keyword patterns where real buyers ask for SaaS, dev tools, agency services, and more.

Volume outbound is dead: reply ceilings on templated blast collapsed past 0.5%. The math, the inbox-filter cause, and what intent-based replaces it with.

HackerNews intent playbook for outbound: how to read Show HN, Ask HN, Who's Hiring, and the comment threads where buyers actually reveal what they need.

Reddit lead generation is the cheapest high-intent channel left for SaaS founders. Here's the exact pipeline, scoring rubric, and 30-min ritual we run.