[rohwer]

This programmer design fallacy got started by the Mormon church (not kidding): http://portal.acm.org/citation.cfm?id=169163

Gregg "Skip" Bailey, Manager of Human Factors, The Church of Jesus Christ of Latter-day Saints.

Iterative methodology and designer training in human-computer interface design, Proceedings CHI '93

This pseudo-scientific study pitted Skip and his team of highly trained designers versus old mainframe programmers (two of whom graduated college). They used an interface design tool--Skip and his design team had prior experience with it--to create interfaces for retired Mormon volunteers. The retirees made more errors with the programmer's interface and presto.. the myth of poor programmer designers is born with all the statistical significance generally found in CHI papers.