These ideas have all been discussed to the tune of thousands and thousands of posts on the U.S. boards. Most got no response at all. Some did get direct responses. eBay insists that PayPal is the safest possible way to pay and get paid. eBay insists that shilling is a minor problem when compared to scam SCOs and that hiding bidder IDs is safer for all in the long run (this was stated emphatically by eBay top brass management on threads started by them on the U.S. Trust & Safety board despite numerous examples to the contrary posted by long time boardies). eBay has openly stated they are not interested in small sellers although they later denied making such statements.
In recent years, everything has been geared towards the corporate level retailers. At one point, something like 300,000 or 400,000 listings appeared overnight, yet few of them were more than placeholders with references to 'sdc'. The boards came alive, examples and screenshots were posted. eBay denied it all. A few days later an announcement was made about a huge contract with Buy.com and their subsidiary shopping.com (sdc) and a new "Diamond" level Power Seller tier. Funny thing was that buy.com had a dismal track record of customer satisfaction on their own site which translated quickly enough to their FB on eBay listings. Some posters calculated their sell through rate at something like 3%.
Shortly thereafter at least one more Diamond level PSer was announced, but I can't remember who they are now. Then came the news stories about the cell phone trinket seller who had hit 1,000,000 FB on each of 4 different IDs for a total of over 4 million FB, dwarfing the former pride of eBay, "Jay and Marie".
Huge power sellers began to leave in droves, sellers with FB in the 500,000 range who signed up not long after eBay began. The stock prices began to fall long before the market crash.
What can eBay do to fix itself? First, one has to realize eBay does not consider itself 'broke'. They feel they are on track to fix the errors of the past. They are out to abandon the 'flea market', rummage sale, garage sale, craft maker/seller image, in other words, the very image that made it what it is.
They are going for the mega shopping mall image with spaced leased to major retailers. They want to be the biggest shopping mall destination on the web.