The software was originally created by someone else (Gideon, as Ninja states). He took on some other projects and didn't have enough time to continue developing Q2A so I stepped up and have been making changes (e.g. adding user's exact join date in profiles was one of the first things I did).
Gideon technically still "owns" the project. Or really just the name, since the software is open source. But he manages the Q2A website and the actual release of each version. A few other people have made contributions on Github too.