I used it for a while. The recommendation engine needed work, and I felt the social aspect of the whole thing was influencing the music I was listening to.

These days, I would go as far as to claim that I grew to despise the figure of the music nerd. I never visit websites such as last.fm and RYM, and the mere sight of a copy of "In the Court of the Crimson King" is enough to ruin my day.

It's hard to explain.