taken from the promo email
Winter Bash is an annual event that can run on any Stack Exchange site that chooses to participate. Users earn “hats” for their gravatars by completing certain tasks (analogous to badges). Certain actions trigger the user receiving a hat, which their gravatar can “wear”. We track everyone’s progress earning hats in a leaderboard that looks something like this:
Winter Bash 2013 will again be available to all sites that choose to participate. We’re redesigning the landing page and redesigning all the hats to keep things fresh and exciting.
This event will run from 16 December 2013 to 3 January 2014. Users will be able to see their entire hat collection at http://winterbash2013.stackexchange.com. That site will also have a landing page, explaining the rules and other details of the event.
Individual users who don’t want to participate, don’t want to see hats, and/or are generally anti-hat will have an “I hate hats” option available. And just like last time, at the end of the event, all hats will go back into storage.
The only visual change to the Stack Exchange sites themselves will be the presence of the hats and the “I hate hats” button in the footer.
Should we participate in the 2013 Winter Bash ? I've created two comments to vote on. Please express your preference by voting on the comment you agree with.