From YPPedia
Game problem commands

If a bug is found while playing, players can use /bug to report it to the Ringers. Another way to report bugs by clicking on "Help" in the Ye panel and then "Report a bug" in the resulting Ahoy! panel. Check the known bugs first by browsing and searching the forum (especially Technical Issues and Tips & Tricks, Questions & Answers) to avoid filing a duplicate report. Also, /bug should not be used for suggestions for new features - those should be directed to Game Design.

Note that greenies cannot use the Ye panel to report a bug. That button is replaced with a method for contacting a Greeter.

/bug <bug information>