Sounds like yet another grift to me, to be honest. Not that I'm stopping anyone from paying premium for whatever perceived online clout.
I'd actually argue a market like that goes against Bitcoin's fungibility, but then again I don't think enough people would even care about these "special" sats for it to have any meaningful impact.
Christy’s and Sotheby's have auctions too. It looks really promising to me.
Got any links? I didn't find anything on their respective websites.