Poll: What percent of pools are scams?

[r0ach]

After reading many people's feelings on pools, such as the guy below, it kind of makes me wonder since I've noticed similar things.  What percent of pools do you think are scams?

"I have always been screwed by pools. I get 200% earnings on every coin I work on if I do it solo. working with a pool I usually get half, often not even that.

I think a lot of pools are quietly siphoning earnings from miners.... but that's a different topic."