I've always found it goofy as hell whenever I hear anyone say "x genre/medium/etc. sucks". Nearly 100% of the time, saying "I don't like x thing" is more accurate. As a bonus, it also sounds less dumb. If you say "Rock music sucks!" and one of your primary reasons is some silly shit like "Oh, it sucks because [i]I personally don't like the guitar as an instrument."[/i] It comes off like you're just trying to be an asshole.