The guy posting this stuff seems like a whack job. I don't know if he'd go as far as to actually attempt physical harm. Most of the "internet tough guys" I've ever talked to seem like the type who would cry if you confronted them in person. Either way, this dude's message is disrespectful, slanderous, a verbal attack, and an implied threat of physical harm. I think our friendly neighborhood TA admins have every right to get rid of this trash as soon as they catch it.