Eric Sink – Yours, Mine and Ours:
"In terms of the size of the canyon, ThemWare is probably the worst possible scenario. If I am building software that I don't use and don't know how to use for people I don't understand or even like, how good is my software going to be?
I probably see every feature in terms of how difficult it will be to implement, rather than how valuable it will be for my users.
I probably find myself wanting to label or document the features using my jargon instead of theirs.
I probably create features that are tedious or unintuitive for my users. I can't imagine why the user interface I designed doesn't make sense to them.
ThemWare is hard."