The different Stack Exchange communities have very different ethos, and thus their answers have some very different vibes. In particular, the ones related to creative writing (especially https://worldbuilding.stackexchange.com/ ) are full of speculative and creative conversations that, while still constructed around the Question/Answers paradigm are not quite so draconianly managed as the technical Stack Exchanges.

I know I'm not the only one, but I sometimes get a bit distracted on SE/SO from the "hot network questions" sidebar and go down rabbit holes of reading answers to questions from different fields. People come up with a lot of interesting, thoughtful answers, especially in worldbuilding.