As I've talked about before, a large pocket of hate is reserved for K-On!! on the anime board over at 4chan. At first I though it was just haters doing their thing, everything going as usual.
However, Coalguys, a prominent fansubber for the series, as well as many others, released a not-so-official statement on this issue.

There you have it. The people over at [a/ are a bunch of sad, sad kiddies who never jumped off the troll train long enough to make friends. As far as I go, I've already said my opinions on K-On!

"I personally like K-On but for the sake of trolling, you hate everything..."