I also stopped posting there years ago for much the same reason. You could feel the strangulation of the community as duplicate questions started getting shouted down, posts got turned into “community wikis” against your will and your own questions started getting edited to better fit someone else’s plans and ideologies. The company was sold shortly after, so maybe animals can sense their pending extinction (some of them anyway)?
I miss those days when writing an answer genuinely felt like helping to grow the global community of friend developers. It’s a shame no technology has been discovered that will let the small amount of collective good in us all work together against the assholes, but alas it seems the opposite is always true.
I looked into doing something similar with Winipedia and the recommendation is also to use Kiwix, and the offline file size is also very large.
Welcome to the collapse! Hoarding “clean data” for personal use is like hoarding clean water and food: you need a place to keep it, and it starts going stale the minute you shelve it. So either buy a digital bunker to load up with what you need or ask the all knowing AI gods for answers like the other poors.
Also the Stack Exchange software used to be open source, surely there’s still a fork somewhere. You could certainly run your own Developer QA site, but like with Lemmy, the problem then is getting enough traffic to be able to productively tap into the collective wisdom.