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.