The Worst Witch vs Harry Potter
Harry Potter is definitely not a rip off all they have is a boarding school in a castle, but some of the fandom is unpleasant.
Forums
Fictionalley Park is a nasty, stupid forum of so called fans.
Potterforums has a few so called fans but is a little bit better but not really worth going on.
A lot of it has something to do with when the sixth book was released because their dream ships sank.