Additionally, there is not-universal-but-fairly-widespread culture of contempt for folks who make suggestions like that. "Bah, typical Excel user with your useless eye-candy and summaries and obsession with ease of use."

I wrote an article some months back about competing with OSS, which included some very basic advice like "If you offer software for download, you should have a prominent button which lets people download your software". I did not anticipate this recommendation would be controversial. I got some absolutely priceless comments about it. My two favorites: users who can't find the software without a big ugly button don't deserve to have it, and technically disinclined users who are attempting to install software from the Internet are already doing something wrong, they should be getting it from their distro's repo instead.