Patterns
Reciprocity: what 222 posts that lean on it have in common
222 posts in the library lean on reciprocity, reaching a median of 1.1K likes. Eight that use it, what it travels with, and how to use it without faking it.
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Reciprocity, as the analysis uses the term: the post gives something usable away first — a template, a number, a method — and the reader feels the pull to respond. 222 posts in the library lean on it, and they reach a median of 1,129 likes — well above the library's 632.
Eight that use it
There are three things the French are truly great at:
Opens with a short, self-contained line that is easy to take in at a glance.
The European Commission’s $140 million fine on @X is an abomination.
Leads with a specific number, which is concrete enough to be worth a second of attention.
Hot take: Online gaming should be completely free, this is a completely arbitrary price with no real benefit.
Opens by contradicting a common belief, which makes readers stop to disagree or agree.
Anthropic maintains that it is entitled to train for free on all the world’s output, even if the author objects. But if a competitor trains on Anthropic’s output after paying for it, that is IP theft. The hypocrisy is breathtaking.
Gives away something genuinely useful before asking for anything.
🚨 GB News has won in the High Court against Ofcom—the first time Ofcom has lost a judicial review of a broadcasting code decision.
Gives away something genuinely useful before asking for anything.
This 2-hour Stanford lecture breaks down how models like ChatGPT and Claude are actually built, clearer than what many people in top AI roles ever get exposed to.
Contradicts something the audience already believes, which stops the scroll.
o3-mini is out!
Opens with a short, self-contained line that is easy to take in at a glance.
Indian gov't is buying a subscription to 13,000 academic journals, and then making them all available to "18 million students, faculty, and researchers" for free.
Leads with a specific number, which is concrete enough to be worth a second of attention.
What it travels with
Reciprocity rarely works alone. In these posts it most often appears beside specificity (57 of 222) and pattern interrupts (14). The opening that carries it most often is an observation — 155 of the 222.
How to use it without faking it
The mechanism is a description of why something worked, not an instruction to manufacture the effect. The post gives something usable away first — a template, a number, a method — and the reader feels the pull to respond — so the question to ask of a draft is whether that is actually true of it, not whether it sounds like it is. The posts above pass that test; the library's rejected ones mostly did not.
From the analysis of the strongest example: Preserve the Hook → List → List → List → Landing structure and the plain observation opening. Replace the subject matter entirely with the writer’s own product, story and numbers.