There is a valid point to be made about verifying usability and the need for a large and diverse userbase.
How much you want to bet that the Haiku userbase is overwhelmingly male? And this is not to make some concerned sexism argument but to illustrate that the community is more representative of the IT crowd rather than the general population.
OK, that is indeed a valid point, but not one I got from the first comments.
I think Haiku has a diverse enough following that we are past most of these concerns, and a lot of our major paradigms which differ from other OSes were validated in the BeOS days. There are some areas where we still have work to do -- e.g. interfaces for the blind -- but overall we are doing quite well.
> How much you want to bet that the Haiku userbase is overwhelmingly male? And this is not to make some concerned sexism argument but to illustrate that the community is more representative of the IT crowd rather than the general population.
Oh, I know it's true of Haiku, but I practically can guarantee the same is true of Linux/BSD/etc. So then, can only "mainstream" operating systems have anything to say here?
That was the second half of my comment. Please re-read the first half.
My point in that part, though, was that macOS has ~1/10 the users of Windows, but Windows' UI/UX was/is widely regarded as absolutely atrocious, and macOS' as being pretty good to great, depending on who you ask. So "if it has less users, their thoughts on design are irrelevant" is ... not a good argument.