The tl;dr (but still pretty long) is that Stack Overflow instituted a new Code of Conduct that required the use of a person's [preferred] pronouns. This change in the Code of Conduct was well intentioned but some people took issue with how it was implemented without much community input. A mod (Monica Cellio) had some level-headed discussion/questions about writing in a gender neutral style vs. affirmatively using a person's pronouns. She was fired with basically no due process, and it's pretty clear that she wasn't being mean or intentionally violating the Code of Conduct. A bunch of other mods got upset with how she was fired and they quit. SO has now issued two non-apologies and is rushing out a new Code of Conduct with a short timeframe for feedback, which is almost sure to make more people angry- plus they haven't been very concrete about which, if any, mods will be getting their jobs back after this fiasco. I don't envy SO's position- they have to keep mods happy, but if they walk back their original CoC change they would be telling the entire LGBTQ+ community that they are valued less than a few mods. However, this is entirely SO's fault with the way they have handled things- including not firing a mod that used more hateful language which makes their enforcement of the CoC inconsistent- so don't feel too bad for them.