Apparently, we have a racist who has little computer knowledge.. he's apparently hacked into your code, as when you click on a thread, it goes directly to his venomous spew.
If you don't do something about this, you are going to lose a lot more than forum posters. Your advertisers will bail out on you, and you will have let him and his ilk win.
Once again.. I am volunteering to be a moderator, as others have. If you have a problem with volunteer mods, you could make it worth our while, with either a stipend, free membership to the members zone, a free subscritpion to the magazine, whatever.
Just do something!