the best threads here are the ones where people disagreed
The threads that have been most useful here are the ones where people disagreed. The overrated thread, the bpc/tb500 one, the GIP puzzle.
What seems to make the difference: say what specifically you disagree with. State the other side's best version first. Separate "the evidence is weak" from "you're wrong", because almost every disagreement here is about evidence strength not facts. And update out loud, several threads have someone saying "ok that's a better framing than mine" and those are the best moments on this forum.
What doesn't work: certainty as a substitute for sourcing.
Not a rule proposal, just an observation about what's been working.