The Discourse Team and I are pleased to announce our Import GitHub Issues into Discourse tool. The idea behind it is fairly simple, authenticate with GitHub, select the issues you wish to import, and then provide your Discourse credentials and let it do the rest (as shown in the screenshots below)!
Authenticate with GitHub
Select a Repository
Select the Issues you want to Import
Enter your Discourse Details and start the Import Process
If you have repositories that have open issues and you have a Discourse instance where you would like these issues to reside, please give it a go!
We would love to hear any feedback to your experience with the tool, any improvements that may be useful, and more importantly if you encounter any issues or errors in this topic.
Edit - 8/8/2016: Update the URL to GitHub Issues to Discourse Mover