I was recently introduced to Perl Golf when Ton Hospel announced the Open Ircnet #perl Golf Challenge on c.l.p.m. What an addicting game! My score royally sucked compared to the real players, but I learned a ton about Perl.
It forced me to read a lot of documentation about functions and switches that I don't normally use. It forced me to approach problems in a new way. These are Good Things.
The fun with perl list is good for golf and puzzles as well if you aren't subscribed to it already.