[p4bl0]

Nobody is saying it's a problem to sell a user-friendly wrapper GUI to people who need it. And nobody should be saying creating those is easy. However the developer has to acknowledge the underlying open source tools (FFmpeg and ImageMagick) somewhere on their app's website. Otherwise, yes, there's a clear ethical issue in implying the heavy back-end work is done by your code.

[dymk]

This hand wringing makes it sound like it doesn’t matter what the guy does, HN will find some reason to call it sour grapes.