Anyone can click a button to cast a vote for a whole variety of reasons, including reciprocal voting and so on. You only need to go to the galleries to see how that works: it seems to kill variety in the top ranks. I don't find it useful for finding art I want to look at. I wouldn't find it useful for finding products I want to buy.

I think the most valid vote is the one you cast with your wallet.

We already have a "what's hot" category. But a best sellers list that filters out reasonably old content but extends in time a bit longer than the "what's hot" category might be quite useful.

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PoserPro 2014, PS CS5.5 Ext, Nikon D300. Win 8, i7-4770 @ 3.4 GHz, AMD Radeon 8570, 12 GB RAM.