I know that Holiday Cheer is a longstanding part of this site's culture, and it makes some of us smile when we see it.
BUT
In my humble opinion, having turkeys cascade down the screen is unprofessional and it dissuades new members who might want to join the forum community.
I propose turning off Holiday Cheer by default for unregistered visitors and new users and letting users turn on Holiday Cheer if they'd like.