It helps that a lot of things are compatible with XP due to just how long it lasted.
As previously mentioned do be aware there is a LOT of spergery and troonery within the retro tech communities - one particularly notable lolcow, MisatoDX4/Proxima64, comes to mind as an example of a person circulating the legacy Windows communities.
There was also a bunch of autism surrounding a now-dead MSFN clone called eclipse.cx not too long ago, due to one of the ex-staffers having his PM perms removed or something; the community admin removed the guy who actually paid for his hosting (just a few days after it had been renewed), and proceeded to kick most of the actually important members away, leaving only the autistic twats behind.