I believe it's only sneakers, handbags & jewelry, above a certain price point and there's a list of brands. Hermes bags are on that list but not scarves or other clothing, jackets etc..
For what it's worth, I do NOT trust eBay's authentication service. They have gotten in wrong both ways; judged counterfeits as authentic & authentic goods as fake. We have no transparency on the "team" doing the authenticating other than when they were hiring, the qualifications were;
2 years authenticating OR 2 years SALES experience in luxury goods.

Sales? Really..