VaultTrainer

From what I can tell you might just be thinking of the Random and Political threads, although News gets racist too. Some of the other threads like Art and Technology are usually filled with very helpful and nice people. Although with it being anonymous and all, sometimes boards do leak into each other. And on the subject of the man getting egged on to commit a shooting, out of the hundreds of "I'm going to x at y" posts I've seen only one has been true. Although this is all just my opinion so I may be wrong.