All hail the mighty ignore list, silencer of dissention, censor of questions, ensurer of the one true path.
You forgot "starver of trolls"
I don't think it functions very well in that regard.
Maybe.
I mostly use it so that browsing bitcointalk.org is safe for work. Posters who only seem to produce profanity laden posts? Well, welcome to my ignore list, you fucking foulmouthed cunts.