David,
You must be upset, what happened to you was highly unpleasant. On a human level, you don't deserve it. Being personally rejected by someone you love is just about the most painful thing there is.
But let's be honest, you allow this site to run unchecked, every day, spewing out bile and hatred so you can't really be that shocked that you've had to go for the chop - it's not about you, per se, it's about what you allow to happen on this site. The place is full of tosspots, so you're thrown out of a gig because of them. I don't see why in any sane world you should be responsible for every word posted here. But fact is, you are. It's your site. And it's a laughing stock (just look at the 2 Guardian articles in the last week, about the dog and the t shirt), and it's unique (not in a good way) in that I cannot think of one other artist fan site so filled with hatred for the artist.
This is what you created. And no, in response to you saying you'll keep it around if it's still 'useful' for fans - it isn't. Not like this. No-one wants you to shut it down. But you must get control of the tone of the place. I'm not suggested you censor comments, rather that you let people know that they need to PM each other to exchange hatred. If you can get the animals in here under control it would be better for the site, better for those of us who used to love coming here but can't come anymore because of the idiots, and, frankly, better for you. Said with love.
Liz x