...Yeah, the in-built rating system makes it pretty easy to find the quality stuff. It works well. The knock-off ones don't generally get rated terribly well, early on the community is kinda weeding that stuff out, so that's a good sign, although that "Prior" bug mentioned above might be a slight spanner in the works to be fixed. I've made a few small changes to the Brendon McCullum version that's currently rated on the top, but I won't upload my variation as I've only changed a few small things visually, along with playing around with the kit colour options.
I've found another issue with this system...
There was a Barrack Obama on the server which already had half a dozen 'thumbs', but it didn't look like him.
So I downloaded it and tweaked
every single feature to get it closer to his photo, and re-uploaded it.
However, the original author then downloaded mine, changed the hair colour, and then re-uploaded it back over his one.
This makes mine look like a crappy knock-off... it looks I've only changed his hair and tried to steal it... when actually I spent ages on that character, but get zero credit.
Left is original (original/submitted by him),
middle is mine (original=him, submitted=me),
right is his now after he copied my edit over the top of his one (original/submitted by him, no mention of me).
It's not that much of a big deal as I don't really care if I'm internet-famous for making characters, but it does seem like a bit of a flaw in the credits system.