Afraid I do not use Facebook, so cannot read the original message
But here is another Ebay story, in case of interest
A couple of years back I bought a coin on Ebay (a liondaaler) which looked perfectly OK to me
But I was concerned when the same seller then offered an identical coin for sale. It seemed there were two possibilities to me. Either mine was a fake, or the seller made a mistake with his photo.
My judgement was that it was very possibly a mistake with the photos because the residual patination stains were exactly the same. Even a very well made pressure cast would not have the same surface stains.
Of course I wrote the seller to ask, and did not get a clear reply I did not think he had very good English.
So I telephoned Ebay, explaining the situation, and asking the young lady manning the help desk to forward a message from me to the other successful buyer of the second coin, so we could compare notes. But she would not do this (I guess it was above her pay grade, but I was disappointed she was not in a position to get permission from a supervisor either). Thus I judged Ebay policy potentially protected a scamster.
Disappointed by this, I explained the facts as above on a Yahoo coin discussion group
I got no immediate response on group, but soon afterwards there was a complaint on that group that I had lodged an ad hominem - made by one member and just one other member seconded him. I deny this (then and now). But the moderator of that group expelled me, without any notice or discussion. I had had no prior discussion what so ever with that moderator.
Subsequently the guy who had seconded the complaint withdrew (we since met quite amicably).
So I was expelled on the (imo false) accusation of just one member.
Here is the punch line. Unknown to the group, as I understand it, that one member who triggered my expulsion was at that time employed at Ebay, indeed, I have the impression he was in charge of Ebay ethics for the UK
(All the above is of course taken from memory, since due to Yahoo policy, I now have no access to the messages I posted on that group.)