But I don't think there are people out there happily burning 5% productivity to compensate for poor UI. Normally people are burning productivity by not learnin

But I don't think there are people out there happily burning 5% productivity to compensate for poor UI. Normally people are burning productivity by not learning/knowing what their existing UI provides. e.g. In windows windows-key+arrow, lets you snap windows to the side of the screen (or minimize, mazimize, shift monitor etc). Now I've absolutely no idea when this feature was introduced - but plenty of people are still reaching for their pointer device to drag stuff about. It's a nice feature. You don't forget it - but it's bad UX as I swear usage of it only spreads by word-of-mouth. No idea if MS invented it - or it was 'borrowed' from another OS.