Well,
Greedy!!!
Stackoverflow T-shirt for 55 people. People are chosen randomly or by any selection method based on letter 5 - like people have reputation in all 5's at the start of the day (like 55 ,555, etc). Or give it to 55 people who get more reputation through the day(without considering rep cap).
Not so greedy
Any special hat/badge for 55 people. They can wear them for 5 years, until 10th birthday. They need to give it back on 10th birthday.
Happy!
A big cheers for SO in the morning, and a happy birthday banner hanging on top throughout the day. And then just another day at the Office.
Grumpy!!
No vote limit for the day and automate a help vampire question every 10 minutes, through out the day.
Hi all, My team lead (#@$@#$) want me to prgm a HTML5 websit in C
without usng any editor othr than ms paint. Pls Gve me the codz.
so that everyone do some real moderating.
Happy Birthday Stackoverflow!!