Hey, I remember this guy! Buddy of someone who tried to get a bunch of low quality stuff into ifupdown-ng, including copying code with an incompatible license and removing the notice. He's in every PR, complaining the "project is dead". He even pushes for the account to be made "team member".
The PR + angry user pushing for the PR author to gain commit access spiel is definitely suspiciously similar to what happened with xz-utils. Possible coincidence but worth investigating further.
https://github.com/ifupdown-ng/ifupdown-ng/pulls/easynetdev
He follows 54k accounts though, so it may indeed just be coincidence.