We will not allow bad skins into the game. We are sticklers for quality. If you find a bad one, let me know.
Basic criteria for skin replacement is 1) how unique is it compared to what is already in the game? 2) Is the overall quality better than what is in the game? We also have to judge the mechanical and historical aspects.
Limiting any one skinner to a number of skins is not fair either. There are people doing this who have a natural ability for doing extremely good artwork. We would be remiss in not allowing those skins into the game, particularly when they meet the criteria.
This pushes people to do the best they can, as only the best work will find its way into the game. Quality is not neccessarily in conflict with quantity. It all depends on the person doing it.
The real issue is one of duplicity. How do you guys (all the skinners) make sure you are all doing a unique work? Communication seems to be the best way, then it is not a matter of time, just a matter of signing up. I would suggest giving this a go now.
Create a thread for a particular model, then everyone signup to do a skin.