They suck.

But beyond that, zero bombs are incredibly annoying. No song really deserves a zero unless it's an obvious rip-off or something like a high pitched screech for a minute. It sucks to see one's hard work shot down the rating charts into a region that will NEVER be viewed by anyone EVER. I know it's the internet and manners and respect are non-existent, but it's still, it's fucking annoying. This is going to do fuck nothing, but whatever.