I would not be surprised if that is one reason ebay is quite happy to have big sellers coming on board and is making things harder for the smaller sellers.Maybe they see smaller sellers as riskier & more work.

Scammers have always been on ebay, it is just that in the past, there was nothing you could do about it.

These days with so many other businesses and sales sites online (and reliable), yes, ebay is going to face trouble if too many people perceive it as unreliable.

Lots of people who are fairly new to selling or buying on ebay just won't be bothered doing anything if it is only a few dollars at stake. Of course ebay profits when that happens.

But in the long term, it may come back to bite them.