So the best way you can help is by reporting bugs to the Bugzilla and adding test reports with workarounds to the AppDB. I understand your anger, but the development of such a complex tool takes time, sometimes requires a few steps back, and may involve breaking backward compatibility. There is still a long road ahead, so grit your teeth and hang in there.

Edit: and don’t forget to toss a coin to your developer the unsung hero who braves endless bugs, slays the monstrous legacy code, and keeps the realm of software safe from chaos.