It makes me think of the nazi bar problem and the classic paradox of tolerance. You are the moderator, you obviously thought about this. I understand your position, but I don't agree with it.

I worry about how the online forums will evolve in the coming years. I'm quite pessimistic, since so many people are now ennemies.

https://en.wiktionary.org/wiki/Nazi_bar

https://en.wikipedia.org/wiki/Paradox_of_tolerance