Yeah, we enjoy ripping flamers a new cavity, so feel free to report them.
As far as annoying, overly obsessive fans are concerned, I'm not sure if Harry Potter is as bad as it was, because as much as I really enjoyed the books, I found the fandom just a giant pain in the arse, where people demanded that everyone write stories exactly the way they know they should be written, so don't you dare write anything even slightly different! Screw that; screw that right to the wall and hang a picture on it. As much as I can see the appeal of writing fanfiction - all the hard work has been done for you - I much prefer to just stick to original fiction... when I can be bothered. I really don't like having my creativity stifled to such an enormous degree that it inevitably is when you write fanfiction.