Well, expecting popular blog with open anon access not to have trolls is rather naive. The reality is, however sad it seems, that there are thousands of people out there that enjoy this exactly type of behavior. And some of them, oh horror, may know how to program and read the same blogs normal people do. And until technology allows to find and punch somebody in the face by IP, they'll be around. They don't represent any community, no more that a bird crapping on your car represents the local community.