A good argument against the existence of rookie hazing below.
On a personal note, my stance on the issue of hazing is:
If the only way you can feel like I've "earned" my place on your team is by humiliating and embarrassing me, then I don't want to be on your team.
There are far more POSITIVE ways to achieve both the unity of the team and individual growth. Some examples are: mentoring, community service/charity as a team or group, and including the rookies in social gatherings.
Now I've had my say. The floor is open.