I think Ebay should have a star rating system for Buyers on communication and if it's low, they should be punished severely for it. I hate when they don't communicate about paying and the ones who leave negative without even communicating to you first. I always try to contact the Seller if I'm concerned once I receive the item so we can work it out. If you don't say anything, how on earth is anyone to know. Sometimes, emergencies come up and that's understandable, but I believe most cases it doesn't involve one. They probably think leaving feedback will make their day full of sunshine and suddenly solve everything when they are unhappy with the item.
Also, I believe everyone should be required to take a mini lesson (like a tutoral with multiple choice quiz at the end) on buying and selling on Ebay before they're allowed to bid, buy, or sell. A lot of people don't even know the basic rules on Ebay, such as that you're supposed to pay if you win, not bid on multiple auctions and pay the one that you win with lowest final bid. Maybe it would improve things a little bit. But in the end, time is of essence and I'm not sure people would even bother.
Also, I believe everyone should be required to take a mini lesson (like a tutoral with multiple choice quiz at the end) on buying and selling on Ebay before they're allowed to bid, buy, or sell. A lot of people don't even know the basic rules on Ebay, such as that you're supposed to pay if you win, not bid on multiple auctions and pay the one that you win with lowest final bid. Maybe it would improve things a little bit. But in the end, time is of essence and I'm not sure people would even bother.