[randmeerkat]

Gimp is great, but it’s also the UI that I think of when I think of OSS that lacks finish. Hiring a UX consultant one time, 15 years ago, isn’t how people realize a good user experience. That’s why companies employ UI / UX engineers full time…

[marrs]

He wasn’t hired, he was a part of the development team for a number of years. For all I know, he still is.

I still think you’ve chosen a bad example. Gimp’s UI is no worse than Photoshop’s, and that’s not open source.