Stop the stupid easy return program. You're costing your sellers a whole lot of money for no reason.
Start paying attention to your sellers. Guess what, without sellers paying fees, you don't make any money.
Don't want to do that? Start collecting fees from buyers, and stop collecting fees from sellers.
You've lost at least 100,000,000 auctions a year, and 50,000,000 buy it nows with your policies. Those sellers have gone out and founded and created competitors to your market. ‘Find it on eBay’ is quickly becoming no longer true. And all those lost listings means that much less cash in your pocket, and potential final value fees from sales. That's pretty much the amount of money you are short, and have to cut your staff. And it will get worse this year unless you drastically change course.
Another problem is that searches don’t turn up what you ask for because you have to plow through 100’s of off-category items. You give up before you ever get to the specified items. And that is just from a buyer’s perspective. As a seller I used to do pretty well on eBay. But with buyers never seeing my product it is hardly worth the effort.