Not Bob

From Fandom wank wiki

Not Bob, or Not Bob You Freaks, is a common troll at Pottersues, a journal devoted to mocking Mary Sues in the Harry Potter fandom. S/h/it's usual technique includes accusing all the members of Pottersues of being lesbians.

At this time, Not Bob has had several incarnations, each of which is almost certainly a different person. The troll first appeared here (and here is a related wank report), and the entire history is detailed here.

Parodies

Fanficrants's pet troll, antifanficrants, is a Shipwar-esque parody of Not Bob. However, it seems to be somewhat defunct as of late. Members of Fanficrants still often reply to trollposts with statements along the lines of, 'our pet troll is antifanficrants; you can't troll here without their permission'. So it's all for the best.