I am talking about morons who slag bands off and are very vocal about it, at gigs.. whatever. Not about deciding something isn't right for you and not bothering with it. To be honest I was recalling a situation with some idiot at a gig who was slagging a band off and when I asked if he had heard some classic album by the band he had no idea. Fuckin tools like that need to keep their opinions to themselves without tainting the band or other peoples view, as unfortunately some people are weak minded enough to listen and/or don't have the brain capacity or ear to make their own opinions either, which I also have found is sadly true.
edit..
I couldn't give a fuck if someone doesn't agree with my tastes, I listen to stuff that makes ME feel good..as I said it is when they are self righteously vocal about it, when they haven't got a fuckin clue basically.