They're turning on each other for stupid reasons. Pronouns? Jeebus! Priorities folks.
My recent experiences with Stack Exchange is that the topics I'm looking up tend to have incomplete or buggy answers, answers that generate bizarre error messages unrelated to the ones that lead to my looking at their site in the first place, and ultimately, some moderator bitching about the fact that the questions had been answered 4-5 years ago. Um... so why, then, did these newer posts with all the moderator bitching show up at the top of the search results instead of the older and, apparently, moderator-preferred answers? The use of the correct pronouns in the answers is the /last/ thing I would be worried about.