Agreed. The current format of this competition feels disconnected from the spirit of the original event.
One could reshape it similar to this:
1)Order pizza and pay with
BTC anytime during
the year*.2)Share proof of your purchases during "Bitcoin Pizza Day on Bitcointalk" by placing relevant receipts and photos.
3)
Users who’ve bought the most pizzas with BTCand eaten them 
become the winners.
*) Subject to discuss.
Does that mean we should eat pizza all year round? There's no way I'm gaining weight for a contest