In reply to Robert Durran:
For sure, but why upload 'dross' at all? For the number of votes required to sort the 'top photos', the five-point scale is already quite sufficient when the OP's 4.7 is probably effectively established between voters without individual agonising over what's a 4.6, 4.7 or 4.8, and who needs options like 0.1 or 0.2 for things that simply weren't worth sharing?
So, yes, I sometimes look at the top photos, have been impressed by some (I like your gallery, Rob!) and admit to enjoying the time one of mine nearly won, but haven't voted on a photo here for years because there's also much I don't like about the system and how folk appear to use it...