Uhhm. Actually a lot of site owners have a low tolerance to something of that nature, in which he did.
To be honest, this is probably better off for him. He was going to kill himself because of a number on an online forum. He should seek professional help for that problem. Perhaps FK was an addiction for him, who knows? Nothing online should ever get bad enough to where you'd want to kill yourself. Seriously.
If I was a owner of a Forum and somebody talked shit to me saying I am a scammer and whatnot, i'd ban them too. You don't get the privilege to talk shit and still able to go about on the forum. Sorry it doesn't work that way.
Yeah, I felt bad for him at first and had some sympathy, but talking shit (especially to the owner) will inevitably, as you guys like to call it: "The dick".
GG.