Comments like these are a good illustration why work on open source projects is such an ungrateful task. Yes, you have a point, and I'm sure all your gripes are accurate. But in spite of all of that you still got a product for free and who are you to determine that it wouldn't take much to address all those nitpick issues?

And yes, of course there is interest (see the answer to your comment), but resources are finite and many of these projects have a very small fraction of the budget of even the smallest commercial operation.