First of all, this is the general section, people can post here various subjects.
In fact, I saw here Game of thrones, Breaking bad (and I loved Breaking Bad), and loads of other contents, like music threads and all...
But THERE ARE SUBSECTIONS FOR THOSE ASWELL, if you think anime-related treads should be moved to anime section, move those too to the entertainment, or music section, because these threads have the same right to be here than every other thread.
Plus, no one obliges you to post here. If you see and dont like you can ignore it, you have that right.
Deal with it.