[sgift]

Are there any arguments why a non-commercial product (not necessarily Gimp) will never be able to reach "that level"? This looks suspiciously like "open source software is always worse than closed source!!!!!" which has been refuted more than once.

[arethuza]

I don't think anyone doubts that for things like OS kernels, database engines, web frameworks, browsers, libraries, editors etc. FOSS software easily wins.

But for end-user applications where you pay for the competition and where the typical end-users are not developers, or similar, (e.g. MS Office, PaintShop, most games) then FOSS versions seem rather poor by comparison.

[atesting]

Have you ever tried MyPaint?

IMO a good example of a software which does its tasks very well (I'm no (digital) painter, but I've heard about graphic artists seriously thinking about switching to it... if it only had a Mac version...).