Gwern is overly secretive of his privacy. I think it peaked when he showed up on a recent podcast but his voice and image were AI generated! And now his post is limited only to certain people. Elitism or paranoia?

Revealing your identity needs only to be done once, and then you can't undo.

It's difficult for us to know what reason they might have for anonymity until we know their identity, at which point it's too late.

Also, they've written many words across many years, in a time when "the internet is serious business" was just a meme. I suppose it is now.

He's had a private Twitter for a while.

He says he is retiring from pseudonymity. (Gwern Branwen is not his real name: https://en.wikipedia.org/wiki/Gwern)

What business is it of yours? Manage your own privacy. Let other people decide theirs.

Stalker vibes bro.