It’s discussed in the thread. At one point (and maybe it was wrong) such findings were weaponized to the detriment of the community — i.e. vaccines are dangerous.
I agree though with your point that he’s being a bit sanctimonious. It’s not just about community civility — there’s an overarching “we are doing what’s best for world” attitude that Facebook and the like are also employing.
I didn’t get a sanctimonious tone. I got a frustrated/tired one. Like a warning from someone who has seen it happen 100 times and can’t put a lot of energy into it anymore.
Just “I’ve been there, this is what’s going to happen, sorry but it really sucks.“