I see your concern.
It would be interesting if Acill could answer Akira's post.
IMO, what could be posted are the seller's initials, the domain name and maybe a few characters of the email address.
For instance, if you had to buy some stuff from:
B.G.
Bi**.Ga***@microsoft.com
Redmond, USA
you would probably not trust his offer about "Lot of rare Amiga stuff. Always loved the Amiga. PC sucked back in the day and still do."