Canonical. Their desktop experience had already lost its shine (and, effing snaps), but I made the mistake of believing that they might be cool anyway, without doing my research.
Intelligence test? Story about high school? Reflex test? The actual red flag for me was their final admission that they require an unpaid internship in the form of "community participation."
https://www.reddit.com/r/linux/comments/tkc348/my_interview_...