Nooope.. not at all.. (first strip was posted in late 98 or the start of 99, and I'm up to april 1st, 2003.. ).
You should totally go and check it out here
. It's just like UserFriendly, except better artwork.
And just so you know what the deal with the panda is, here's a link to one of the many Brent-gets-mauled-by-a-giant-panda-strip
. enjoy ;)