He's commenting on the spirit of software released under permissive licenses like GPL. By selling software built on the backs of free developers, you're effect

He's commenting on the spirit of software released under permissive licenses like GPL. By selling software built on the backs of free developers, you're effectively profiting off of a significant amount of their work. I hope you donate a nice chunk of money to ffmpeg. https://ffmpeg.org/donations.html https://ffmpeg.org/donations.html