I have added very small amounts of content to technical/engineering pages. If the topic is obscure I can add content. If the topic is not obscure I have run into the same crap. The place is loaded with mean spirited over seers. The internet in general tends to pull the meanest part of our personalities out.
A lot of this stuff I was editing WAS obscure. For the past few weeks, I was working on Arizona starting with the “places” page in alpha order, and these were native villages. I was making a visual conclusion that many were no longer in existence and declaring them ghost towns (using three references to visually confirm this as so, topo and aerial maps from the past to present) and this was not good enough (never mind my Benson AZ edit I outlined further down in this thread). Deleting my edits were getting high-five circlejerks by these power-hungry idiots.