Gitter has been working on a content system called Topics. https://gitter.im/gitterHQ/topics. It's still in Beta, but Q&A and structured content is definitely something that - in addition to chat - we think is important.
That's really awesome! Does it run like a mailing list system? One of the #1 pain points in running FOSS projects is creating and managing a mailing list, with archive browsing that doesn't look atrocious.
very interesting, the UI throws me off though, for instance are topics somehow correlated to the channels I have open (i.e. the list on the left)? Can I access Topics from the desktop client?
I guess you can remove OSQA from that list. It's now abandoned, with no new commits and the developers strongly encouraging to use their commercial offering...
I'm currently in the processor of migrating an OSQA site to AskBot, which seems currently maintained.
