Seeing how badly people act in blog posts, I think that giving the blog owner the ability to block and delete comments from certain users will be beneficial. Mostly because many people think they're funny, or that they're entitled to insult someone and consider it "free speech". I've seen people calling someone gay over a post about picking the opposite gender in a Pokemon game, or mocking someone that just came out as transgender. When I asked if any furry played Second Life, I was insulted and called a pervert until the thread was closed and I found no one to play with. They get called out by other users and flame ensues. We don't expect the mods to act quickly on such behavior all the time, so it would be nice if users could remove the bad weed by themselves.