I agree that he needs to keep the focus on Twitter, but I believe he is curious enough to have checked out Nostr for himself. Of course he would do it somewhat covertly (which I know is an argument against this being him) because he wouldn't want to make a big splash in Nostr. That could be why he doesn't verify himself here.
I think this was an early account he used and then abandoned. At least the npub and some of the notes and replies looked plausible to me:
nostr:npub1muskhvuv27ktxsuv4qyrgw8u0pjp369wfkac54spupn9u742xydqpel3z5
#ConspiracyToday
