Are people being forced onto eBay? Seems to me that a lot of bottom feeders as well those looking for quality sometimes find what they are looking for. Seems no worse then wandering into "hock shop." Smart shoppers inform themselves and know what they are buying. The neophytes either get skinned or quickly learn. I always tried to learn when I was snookered. Figured it was my own damned fault for failing to prepare.
It's a hard world full of predators and a whole food chain of pray. That's why I became a cop as a kid. But, I also learned . . . there is no cure for stupid. Ignorance? Yes. Stupid? No.
As for eBay? I've looked around a bit, especially when my wife was making and selling metal work. I just know my limitations and only buy what I know from whom I know. This means, no eBay for me. Simply my nature.