The easiest way to handle this is if a skin is breaking the rules (steve remix, mob skin, default texture camo, etc) and you happen across it then you can flag it and a moderator will remove it. Having moderators ok every submission prior to it posting would greatly reduce the amount of stolen content on the site though its not feasible. There are nearly 500,000 submissions to ~30 site moderators.

Also don't quit skinning, if you continue to put out good content you will eventually get a good subscriber base and your content will get more views as you go. One thing I would suggest is posting more in the forums or being in chat more. If you make a good impression upon people there they may look at your submissions.

Ohhhh, I agree...
Also there's only like 3 to 4 good ones.
And when I'm look at them, I'm like this...
-________-

No offense, but it doesn't seem like a great idea. I completely understand how you feel and I agree that there aren't a whole lot of great skins. But sending them in to a skin moderator is a little bit too much. That would mean that very little skins would be posted. Every skinner started somewhere, and I think these skinners need a start too. There are lots of blogs out there showing how to shade and what not, but not everyone is going to see them.

Oh how I wish there was a moderation system when submitting something on the site, blogs maybe no mod needed. But everywhere else certainly does.