It bugs me when "for sale" music is uploaded in fan communities too. Most of these communities are fairly large and there are plenty of people in there that won't buy the album if they don't have to. I know people that want to download will find a way if they really want to, but why make it easy and tempting, you know?

I do think that the diehards buy the music no matter what (except in cases of like, financial situations where it's food or music. then not so much.) but there are some grey area people too.