Currently, English and Japanese are fully supported. All phrases has been perfectly managed with language files. So, you can translate it to your language. Basically, Question2Answer translation files might be compatible with PowerQA except some exceptions. Translation work will be greatly reduced by utilizing them.
Collaborators will get a lot of benefits. We welcome the people to strive. Please try your ability at here.
Translation work is enormous. Its work is very long, and something painful. The first thing you should do is to collect the fellow. By sharing the work, your translation work will finish in a relatively short time.