I plan to change it to a more liberal license for the first stable release (I should add a note to the readme). I still have to choose which one. The GPLv3 was chosen as an interim conservative option.

One way to help me choose one of the most liberal licenses is to get your company to join the sponsorship program ;)

Anyways, I and many others use plenty of GPLv3 software every day, let's agree to disagree on the "useless" part...