Some things that come to mind:
- Perhaps some people who participate in #screenshotsaturday don't want to be in this (even if it is free publicity), perhaps there should be an opt-out tag (eg: "#screenshotsaturday-" seems like it could work, the punctuation doesn't seem to interfere with the tag and it's only 1 character lost).
- I feel it would be unfair and somewhat against the spirit of screenshot saturday to keep old images in the 'top images' for longer than say 1 or 2 weeks.
Despite my reservations, actually playing the game was somewhat entertaining, and a good way to quickly go through screenshots.
I noticed at least one person used '#screenshotsaturdays' (notice the extra 's'), so I guess that is something to keep in mind.
I think your concerns were some of my biggest in doing this.. mainly because I don't want the competitive element to overshadow *anything*. The side by side comparison is purely to let you choose one that appeals to you more on some level so we can ultimately bubble up the really cool ones from the week. The top images are indeed one week only and you only are comparing images within the same seven day window.
The stream is a public one though, and there are even sites that go so far as to really scrutinize and analyze the individual projects being developed. The problem though is that it's really hard to sift through hundreds of screenshots even if they are dumped on the same page. I just wanted to find a way to weight some of them more than others.
The biggest and I mean biggest point of this is to put the screenshots themselves on stage. If you play the game you are guaranteed to never see a duplicate screenshot at least on the left hand side until you run through all of them from the week.