qna was created in T180662: Request creation of qna VPS project but in the end I never found the time to work on it and in the meanwhile work on Discourse has progressed so far that there is probably not much point in doing it any more, so I'm relinquishing it. See T181377#4844844 for more details.
Some VMs in the qna project have been used for Meza testing, that needs to be ported to its own project first.