When it was young you could find veteran wizards who answered all sorts of obscure things because it was fun. The last straw for me was seeing a perfectly valid question about video memory in DOS get drive-by closed by some mod.
And I can understand that. There exist a lot of places on the web to discuss technology (e.g., the one we’re commenting on now). Forums, IRC, blogs, and social media site have been around for a long time. They all sucked as a place to get answers. SO/SE built a better solution, and part of that was a strong anti-discussion bias. It worked, and there is now a great place on the internet to get answers instead of the endless morass of vBulletin sites. I can understand them not wanting to mess with a successful formula.
Eventually I gave up and to this day yet I am still unclear what is considered on/off-topic on P.SE.