one of them was in fact the formerly super active Google+ Fate community
there is a central Cortex discord and a central PBTA discord
i think it's easy to conclude that yes, they are for discussion and are not Q&A sites. how many other Q&A sites actually exist? but there's also questions that need answering
That's coming from the "oh well, nobody wants RPG.SE" angle. I'm interested in what's going on here that it's not servicing these groups.
i mean, sure, some things definitely make discussion a better place for stuff. i'm not sure i'm ready to conclude "yep, RPG.SE just sucks for every other game and there's nothing more we could do" however.
@AndrasDeak Indirectly, in that they measure traffic on the question and D&D questions get measurably more local and SEO traffic.
When my non-D&D questions hit HNQ it was often a system that was "hot" at the time (like Fate during the Fate Core Kickstarter) and/or a franchise with some heft outside the TRPG scene (eg Dresden Files), but most consistently my question just had an "ooh I'll click that because I'm curious without even checking the tags" title.