I've got an email from someone on the Stack Exchange team. It tells me that Winter Bash 2015 is ready, and will start on 14 December.
Since there has been such a positive response in previous years of the Bash, the default this year is we're in.
So - my question to everyone is do we want to be in? Hats are fun, and there will of course be an "I hate hats" option - but it is ultimately a community decision.
Upvote the answer you agree with. If we're out, I need to let the Community Team know by 10 December - so on the 9th, I'll take the highest-voted answer here as consensus, and use that as a response. If there's no highest-voted, I'll just make an executive decision.
Do we want hats?