I've sent countless of e-mails to rapidshare and the like to take down stuff, and they've always taken it down very very quickly, and the fact that the extreme board users complain and ask for re-uploads is actually quite a compliment!
That being said...these sites aren't going away. I haven't been keeping up with the pirate bay case, but if I'm not mistaken - if they get found guilty for essentially just linking to files, won't that set a precedent for forums as well?
extreme board is run by an ex-BDSM paysite owner...I remember finding a page talking about why he started the site.
I do find it pretty disappointing though that certain affiliate programs are letting him even be an affiliate, considering that entire site is based on stolen content. I guess its just the nature of the beast these days.