Earlier quoted context omitted.
> Icon themes - should be more standardized, that's true. Why? There is already a standard. It does not specify what icons look like, but what they mean. Replacing an icon with another that has the same meaning is not a problem. Of course, if you, say, abuse the "system-search" icon to show a looking glass, this will not work with a theme using a different metaphor. The icon theme displayed in the open letter is just…
I had to write quite a lot of messages to icon theme devs to add icons I was missing in XFCE with their theme. They happily added them but from users point it seemed like they needed someone to tell them which ones were missing because they just didn't know. So having a more complete list would be nice.
Freedesktop.org is kinda bad at showing that it isn't a dead organization.