One last point: I'm not saying ALL #OpenSource software has bad UX! There are lots of positive examples. I'm just saying that, as a culture, it has some maturing to do. The very old and very tired advice of "go slow and try a small PR" works great for engineering (and documentation). I'm just saying that doesn't work for UX, which requires a more coordinated, shared teamwork approach.
@scottjenson who do you think is worth looking at for good FLOSS UX? I think there is a real tension between closed product UX (which is often about ease when it is pro user and capture when it is pro VC) and FLOSS UX which should be about control and deep understanding as well.
I think there are other issues as well, but I'm not sure who I'd look at as a good example here.