How one reply turned a pile-on into a useful thread

How one reply turned a pile-on into a useful thread
A post made a claim more strongly than it should have. The comments turned fast, and the tone got sharp, with several people arguing against the strongest possible reading of the post rather than the intended one.
The instinct was to defend the wording. What actually worked was a single reply near the top that did three things: agreed with the specific part that was overstated, restated the narrower claim that was genuinely defensible, and asked the loudest critic a real question about their own experience.
The thread changed shape within an hour. The critics started answering the question instead of attacking the post. Several of those replies were better than the original.
What made it work: conceding first removed the fight, and the question gave the energy somewhere to go. Defending the wording would have kept everyone arguing about wording.
Give an angry thread a better job to do.