Edit: turns out this story goes way beyond Jon, all of Nix is in flux right now. My personal experience is kind of irrelevant.
Edit edit: just read this: https://discourse.nixos.org/t/nixos-foundation-board-giving-power-to-the-community/44552
Original Post:
As a first-hand account; Jon has been the nicest of all the maintainers I’ve had interactions with ( ~7), probably followed by Ryan Mulligan. The only reason I remember Jon’s name (I usually just recognize maintainers by their profile pictures) is because a couple years ago, as part of this thread I was reading this github issue with a really rude/attacking user. I remember reading Jon’s response and thinking “This is one of the most patient FOSS devs on all of Github”.
However, take ^that as-is, because I am not up to date on anything recent. I just wanted to provide the small bit of insight I do have.
Here’s some of my interactions for those who like to judge for themselves: