Also, the paid vs. unpaid is a BS argument. Even if you were paid, it's not the complaining user who's paying you so how can they feel entitled to your time? So

Also, the paid vs. unpaid is a BS argument. Even if you were paid, it's not the complaining user who's paying you so how can they feel entitled to your time? Some people... That said, when someone open sources something there isn an implicit "contract" between the developers and users. The users' feedback helps the developers and in return they get something valuable. It's more of a group effort rather than some one directional flow of power. I've seen projects where these relationships weren't properly managed or where one group didn't appreciate the other and the end result is always the same: dead projects.