That's one of the uses cases, some of us were talking for months now...Great to see you start implementing it... Keep it up!
- What programming languages it is using so people can join if they have experience with that languages?
- Check out #SteemConnect for integration with Steem.
- You can store questions directly on Steem blockchain if you will integrate it deeply with extra services (additional db with perks) on top, this project can grow big and help a lot of people.
PS. Let me know if I can be of any assistance to bootstrap or help with integration.
RE: SteemOverflow: does a Steem-powered Q&A site make sense?