I'd like to add to the chorus of thanks to Werner for all he has done for groff during his lengthy tenure.
In addition to his excellent list of the most high-priority tasks for groff, I would like to suggest a precursor to all of those: having groff use a modern bug-tracking application. The two groff email lists (this and bug-groff) are not a convenient way to keep track of, rate the severity of, and prioritize work that needs to be done. Issues that come up during discussion, such as the one Tadziu mentioned earlier today about groff's less than optimal handling of stretchable spaces, are certainly not high priority to be fixed, but are liable to be lost unless there is a central database where they can be tracked.
