I made a sock account on one of Onion's forums ages ago to look at hidden threads. I never interacted with him (outside of his socks here) or his forum, so the account was totally empty and the name was random. When he "remade" his forum, he just exported all of the usernames and emails from one site and automatically created new accounts for them on another, so I got an email in my burner account exactly like this at the time. This was a while back but he's constantly "remaking" his forums, so that's probably what's happening here. You can see that all of the accounts were created at the same time.
It's so fucking funny that Jodee thinks this is evidence that she's relevant, and Grub is trying to sTaRt DrAmA with her personally. That long, pointless email. Her foaming at the mouth.