I agree with dead_cat. Some videos I want to 5 star because they're great, other videos I want to 5 star because they're the worst thing ever. The distinction is lost with a simple five star rating system.
I saw these guys live a couple times back in the day, and I was always wondering whether I hated them because they were assclowns, or because I was a music snob. +2 stars for justifying my hate!