Obscure music wank
The British band Goldfrapp has a female lead singer named Alison, an official site and a messageboard. This messageboard has a troll. No one notices.

The troll claims that Alison was extremely rude to him when they met and threw red wine at someone else.

Paper Bag replies with She's a STAR and stars should behave like this once in a while.

Wank ensues. The troll identifies himself as Brian Molko (yes, Placebo's lead singer) which has Monkeyhands asking: Shouldn't you be out smashing up hotel rooms instead of letting rip about your peers here?

After this revelation the thread drifts into the bizarre: an Apple vs. Windows discussion pops up and dies, shout-outs to British sports team, someone claims to be a band member of Jefferson Starship, Seattle sucks, eBay is the fastest growing country around the Planet, Phil Collins, Debbie Gibson, I wish you were a satellite channel, heroic couplets and Stephen Jones (Babybird) is really abusive live, but a nice guy in real life, long posts about Copyrights and fair use and the discovery of the Edit button. Hooray!