This is the wrong thread for open-source discussion!
Nonetheless, I think I’ve already made my position clear. The problem is that there’s nobody ready to help. Sad but true. If you think that’s not the case, please prove me wrong and get involved.
If not, maybe you are right, and I should create a commercial version. Then perhaps, I get some benefit out of the immense work on this project.
Concerning the authorship of the code, I published all GPL sources that contain work of other people on this website.