People always complain about the pyro and the supposed lack of skill it takes to play one, but to be a good pyro, the same as all the other classes, takes patience and practice.
On the other hand, it is relatively easy to play pyro and be, if not skilled, then at least not so far behind more experienced players to be frustrated. You can actually get kills, even against better players. This is the beauty of TF2, and the reason it's so popular. I recently began playing CS:S for the first time, and it's amazingly frustrating at times, because my skill level as a beginner is so much lower than the game's community as a whole that I am lucky to get a kdr of 1:4. This turns new players off the game quickly, and is really not what TF2 is about. TF2 isn't a "I'm the best player of all time and you all suck" kind of game. It's a "lets cause some mayhem and have a blast!" type game, and by lowering the difficulty curve a bit Valve reinforces that.
So here is to W+M1! Long may it reign!