One big problems with "settings" is it's easy for people to change them, then get confused. You used to be able to move the taskbar around the screen, and make

One big problems with "settings" is it's easy for people to change them, then get confused. You used to be able to move the taskbar around the screen, and make it taller / shorter. I'm sure some people loved this. On the other hand, I would often find people whose computers were "broken", as their taskbar was invisible, or took half the screen. Even experts can fall for this -- I've had a few open source projects where someone complains "I did X from the documentation, but it didn't work". After a while we discover they, months ago, switched off X (or something related to X). I'm not saying there shouldn't be settings, but they aren't a clear win. Even ignoring the fact they all need testing, they provide pain points for many users.