It would appear that @Catfriend1 has deleted their account and then started anew. Much as that isn’t an action I’d have recommended under the circumstances for the purposes of building trust, it does seem somewhat in-character. For what it’s worth, from what I can glean as an admin, both the old and new account had 2FA enabled and come from the same region of the world. 
Oh the drama.
I guess a cool next step could be for researchxxl to rename their GitHub account, rebase the repo so all the hashes change, and refuse to say anything about it.