Gwern

A [person] on [twitter].
Another node I was surprised I didn't have by July 20th, 2020.
Seems very smart. A role model. He's not as friendly as I hoped, but that might be because he's famous and doesn't have time for random interactions (not judging).
Wrote about [nootropics].
He has a page on blackmail: https://gwern.net/Blackmail.