Oh, yes, I recognize these things as a problem but it's pervasive on eBay, in every category (at least the ones I frequent).
Vintage items don't have a manufacturer or brand name behind them to set up a VeRO rights situations here, so there's no voice to demand that the fakes or misidentified pieces be pulled. LV has people (and, boy, they are after eBay tooth & nail - especially in France but here too), Kate Spade does, Disney does, etc.
Of course, there are recognized personalities on eBay whose authentication of LV and KS, for examples, will cover sellers ahead of time and allows them to bypass being pulled. LV and KS, themselves, recognize these ladies' opinions too.
How eBay handles reports varies from person to person, based upon who actually reads the report and makes a decision about whether or not to pull the listing(s).
Outside of obvious kws, such as listing a Bulova watch and talking about Patek Phillipe and Rolex in the description, they're not going to pull them. They don't have the knowledge base to do it.
About the only times I see something get pulled because it's incorrectly identified is when a group of people bombard eBay with reports, over and over, often for days on end. (Not here, but it does happen on other boards).
So. Caveat emptor does become the rule. If one, herself, doesn't know and she doesn't know an expert to ask, I would always discourage a bid or buy unless it were a phenomenal deal (which, again, probably indicates a fake or falsely identified item).
The people who know
know and they'll be right there to bid on and buy authentic pieces.
GPSA Glass & Pottery Sellers' Association * NAVT
Needle Arts & Vintage Textiles Board * Facebook
Group Blocked Bidders List - eBay BBL