Easily fixed.
For example, they could fix it by only allowing you to get one 'birthday' hat per year. There, I fix'd it. Yay!
-Calle



I just had a thought. I hope there are no outside game methods to receive hats. The reason, although I'm pre-ordering l4d2, they may do GET A FREE ZOMBIE HAT WITH PRE PURCHASE OR L4D2!!
Outside of the tf2 game methods of hat getting would just rage people even more.
or instead of giving us a hat force our character into party mode for the day