Don’t humiliate the “User”
One of the first things I learnt about UI Design was that whatever you do, please do not humiliate the user by designing a UI which confuses or overwhelms him. Simple and easy to understand UI’s are what users like and love to work on.
Kathy Sierra talks about a similar concept in her post earlier this year, entitled “Reducing Guilt is the Killer App“. She practices (and preaches) two things in her “Head-First Book Success Formula” - 1) Take something people are typically made to feel guilty about; and 2) Let them off the hook.
Simple, clear, plesant looking UI’s are what users “like” to work on, and if they do not get humilated by the UI, they will definately be better at using it.