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If we start small, by implementing one change, like adding a cost to downvoting, we could see and measure results. I'm all for this actually, as I have downvoted a few things, and I felt so strongly about them, that i definitely would have paid for them. However, this won't impact really bad whales......

Of course, small steps, measuring, small steps again, that's my approach too. Let's see what other people are thinking about it.