Thanks for answer.
Comparing Jason from the beginning to Jason now, I think that he started to become far more emotional on the forum.
Maybe give him some time to relax. It seems he is on a psychological break down.

Personally I think we should check each others psychological state and advice each other to take a break.

On reddit, I give people 2 to 4 weeks bans if they insult people. And tell them to cool off.
I also delete the post before the others may even read it
I leave a remark it contained some interesting information to react on, quoting only that part.
That way you prevent an emotional fight.
They are free to return if they want. And I ban them again as soon they fall back in the pattern.
It seems to work for my subreddits.
People now give remarks of how friendly the forums are.

I permabanned some people that kept repeating the patterns of insulting and such.