ikiwiki-update-wikilist is designed to be safely run as root by arbitrary users, either by being made suid and using the (now deprecated suidperl), or by being configured in /etc/sudoers to allow arbitrary users to run.
All it does is allows users to add or remove their names from the /etc/ikiwiki/wikilist file.
By default, the user's name will be added. The -r switch causes the user's name to be removed.
If your name is in /etc/ikiwiki/wikilist, the ikiwiki-mass-rebuild(8) command will look for a ~/.ikiwiki/wikilist file, and rebuild the wikis listed in that file.
Joey Hess <email@example.com>