Comment by georgemcbay

This is the same person that resigned as a kernel maintainer (focus on Apple/Arm unsurprisingly) about a week ago.

I don't know this person so this is completely baseless speculation but I assume they are "going through it" in some way and experiencing significant burnout, which based on my own experience in the past has a way of (negatively) amplifying all sorts of interactions that are related to the source of your burnout.