I agree that there is inconsistent treatment by eBay in relation to listings - always has been, and will continue to be I reckon, if it annoys you report the other sellers listings, that is an option.

But .. clarry IMO i'd steer clear of listing those foot decoration thingos for babys feet in shoes

just because other sellers do it, does not make it the way to go on eBay, if you keep getting policy violations the selling restrictions will keep coming, and get longer in duration as well.