It wasn't that he was stage diving, it was that he was on stage for way too long. I wasn't exaggerating when I said he was walking around for thirty seconds at a time before jumping off. He was just being an idiot. But yeah, there are a lot of metal bands that hate stage divers.
The turnout was alright. I'd say about 200 people were there. But like I said, Anthrax and Judas Priest were both playing here last night, so that probably affected it.