Yes, the posters are not obvious authenticators anywhere just individuals , a pointed post once in a blue moon by an unknown
When I asked is there an icon for recognize an authenticator, I should have clarified ... I meant at eBay not here
The eBay verbiage is that “sellers” do authentications, who are they ? In the case of linda’s , she (and her people) uses an outside service (mypoupette). Linda (seller) is not the authenticator. I have no idea how MP works for Linda , email, phone, on site .... but in that case the seller is distinct from the authenticator.
Just curious , there is currently no Hermes scarf EBay authentication, just bags. Yes, the bags are 10X more expensive than an average scarf but there are also 10X more listings for scarves than bags. So, the same dollar amount of listings for scarves as for bags. So, I am waiting ...