I found a Mac OS X UI Hall of Shame. The site describes itself like this:
Mac OS X, Windows and Linux/UNIX desktop managers such as Gnome and KDE have a similar purpose and, as such, similar shortcomings. This site is designed to be a source of “dos” and “don’ts” for interface designers and application developers. The main section of the site is dedicated to various specific GUI issues that can be found in many places in these systems. The second part of the site is a showroom of examples of bad GUI from various popular applications available for various operating environments.