You really think so? I don't really feel too confident that eBay does much about issues like these, unless maybe a considerable # of users complain about the same seller. And of course, it is eBay's policy to not inform you of any action that they may take, which I can understand from a resources and privacy standpoint.
I am sure eBay is more concerned about issues that affect their bottom-line only, like shill bidding and illegal activity.