I absolutely agree that voting doesn't need any reward associated with it at all. It's gratuitous and unnecessary to reward people for voting, to say nothing of it being often counterproductive. Voting should be its own reward (to sound like a greeting card for a moment).

I'm afraid I don't think I really agree with your second point. The voting system doesn't require additional complication. I would very much like that sort of fine-grained control for my own purposes, but I think it would turn out to be misused or inconvenient for the majority of users.

Just my 1.5 cents.