There may be other unforeseen breakage primarily in the handbook portion of the wiki.
The Table Of Contents section of each "PC-BSD® Users Handbook" page may be the best workaround.
ScrotWM is a minimalist window manager written by OpenBSD hackers. It is designed to use keyboard shortcuts to access applications and provides a configuration file. If you haven't used ScrotWM before, spend some time reading through its man page first.
Figure 5.8a provides a screenshot of ScrotWM running on a PC-BSD system:
Figure 5.8a: ScrotWM on a PC-BSD System