There is an issue of frozen voting, which comes up when a site is running for ten years or more. After a while, the initial consensus is frozen, even if new information comes to light. This is a standard problem on websites--- the first round is great, then with time, it is clear the site is frozen at the point of creation, and cannot respond to new things.
For example, in 1998, the "Large Extra Dimension" papers had an enormously huge citation count, and would get a lot of positive upvotes (some negative ones too). But then, over time, you have more votes, and consensus on them shifts.
Perhaps it would be useful to have a time-limit on votes, so that they expire after, say, 4 years?
It's an idea, I am not sure I support it, but there needs to be a way to make a fluid consensus process, which allows automatic response to new information and doesn't ossify old consensus permanently.