Brace yourselves, hats are coming

Question

I noticed on a few other SE sites that the traditional "Hats, or no hats?" season has begun - but apparently this year, instead of sites opting in, it's assumed that everyone wants hats unless a site opts out. (mods - is this true?)

If you've got no idea what I'm talking about, it's a fun thing called Winter Bash that Stack Exchange does every year to ~~maintain advertising revenue while fewer people are working during the holiday season~~ make the sites more fun and keep people contributing while people have holiday season related distractions. If you do certain things in late December / early January, you "win" hat-themed stickers for your profile picture. It's like special seasonal badges, but more fun.

So I'm assuming we're up for that? Let's vote...

Traditionally, even when a site goes for it, individuals can choose to opt out (from a previous year's description):

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.

Yes. Sites will be opted in unless the moderators come screaming and yelling at us to opt out. The only hold-out from last year (besides MathOverflow) seems to be opting in this year. — Jon Ericson, Dec 8 '15 at 1:14
Why are there two answers instead of a single answer that can either end up positive or negative? — Ryan, Dec 8 '15 at 13:49
I think more users can upvote than downvote, so it'd bias the voting? But mostly this is just how I've seen it done — user56reinstatemonica8, Dec 8 '15 at 13:59
Yeah but I'm pretty sure with this method now that your Answer for against got 3 downvotes new users can't even see it. Not that it matters, cause we love hats! — Ryan, Dec 9 '15 at 1:51