Let's focus on GIMP, it's a good example. We know that none, or not enough, of the important GIMP developers who made the important UI decisions had particularl

Let's focus on GIMP, it's a good example. We know that none, or not enough, of the important GIMP developers who made the important UI decisions had particularly good taste for UI, resulting in mediocre choices. But how can we distinguish lack of diversity due to social and economical factors filtering the pool of potential contributors, perfectly fair self-selection of a project committee of people who simply think alike, and random unintentional lack of skill? Would investigating the issue accomplish anything besides aggravating GIMP contributors? Moreover, useful plans should be about concrete attempts to improve GIMP by contributing patches and convincing the maintainers to make changes; attempting to make the GIMP team more diverse in the hope that it performs better is pure wishful thinking.