How did it go from "He even performed a backup/mirror of several dozen of our repositories." to "He deleted part of our repository from GitHub. (..) [He published] an empty package in the cooker repository, which obsoleted all gnome and cosmic packages."? I feel like there's a few steps missing there. How does it go from "a new person joins the community" to "he's able to nuke everything"? Sure, he might be reasonabl…
What's unclear? This guy was part of the project for some time and got maintainer trust. Then he brings in his mate. His mate is a crap person and gets kicked out of the project. The original guy then goes bananas and nukes stuff.