Interesting - looks ok for me. (Following myself and all)
nip05 should be user@domain.xxx no? https://github.com/nostr-protocol/nips/blob/master/05.md
Should be but why is no domain visible for Jack?
Jack doesn't use nip05 verification.
But then how is he showing as verified on Damus?
I'm not sure. No other client shows him being verified. Damus bug? He does have a primal lightning address, but no nip05 verification.