I am a buyer only and believe there should be a star system for things like communication, speed of payment and honesty however dishonest sellers would abuse it. 

There are a lot of very good and honest sellers on eBay the same as there are a lot of honest buyers but it only takes a couple to make it a bad experiance for someone.

The system in place now is nowhere near perfect however its as fair as you will get under the circumstances.

The only way to get something a lot fairer would be to employ an independent umpire to evaluate every sale.... If you think the fees are too high now this would cost a fortune.