This is a follow-up question for , in which the description for these hats are included.  Ask, answer, or vote ±12h from Dec 21, 0:00 UTC.  This hat comes in two versions, but you can only get one.   A user can only get only one hat per site or networkwise? I got this question because of the first screen capture in the linked question  which showed the name of the hat received with the name of the associated site.
120618
I am wondering why some got a moon and others got a sun as Where in the World hat for the same action:   vs.   And is it possible two collect both e.g. from different sites? I only get moons…  I know that there has already been some spoilering .
82540
The hats seem to be designed for passport-photo-like avatars. Perhaps it would be better if you could choose where exactly it fits?
62561
the hats get put back in their boxes on January 4th   Do the hats affect me in any way after the 4th? A badge or something in my profile about how many I unlocked?  Edit: Can I request some form of persistence... please?
6447
Inspired by a , here's a list of the 'etymology' for the  hats. For pictures and a list of criteria, see  instead.  The list is a community wiki; feel free to edit it if you have more information about a hat. If you like to do some research, most hats have been featured in earlier editions, so you might be able to find more information in old Meta Stack Exchange questions.
116106
I really like the hats game. But I would love to keep the hats longer then only one winter. I want to leave them in my wardrobe during summer. Last year, I collected some cool hats, and I apparently lost them during summer.  Maybe we could make a system that allows hats to last for about 2 or 3 years, so we don't have to start over each winter. Or even specify per type of hat a number of years they last? Very very rare hats could last for ever.  I asked this, simply because I love hats! :D
10010
is in the list of SE sites of the new top-bar included. But since  it should be in my top 5 sites to be consistent.  BTW I don't get notified about new rep on Area51 as well.
107162
I was viewing the  and I noticed that I've apparently only had my account for six months, which is news to me... I opened my first site account here in February of 2014.  My account is much older than this, what's causing this bug?  To add some detail... On the per-site list, it does line up the &quot;member for X&quot; text with my actual membership time on that site. For example, when I look at the Meta Stack Exchange leaderboard, it shows me as a member for 2 years, 10 months. This is expected.  Update. With some work, today, I've managed to exceed my Interpersonal Skills hat count of with my Meta Stack Exchange hat count. This has changed my account age to match my MSE account age...  Still not reflective of my actual age... but better.
107497
The description states:     earn 150 reputation points on three different sites (not including Stack Overflow) within 15 days.     I have 3 questions:   Does this mean that if I earn 150 reputation combined on 3 sites, eg. 100 rep on Meta Stack Exchange and 50 rep on Ask Different, I would get this badge? Does Meta Stack Exchange count? Is this being awarded now since it states 'within 15 days'?
94458
For 15K users protect option is supposed to work :     the question must have at least one answer by a new user aka a user with &lt; 10 rep on the site (which is the required rep limit to answer protected questions)    made me wonder if there is a off-by-one error in calculation somewhere. At the moment of writing  its author has only 9 rep on site (6 from one answer and 3 from one question) but protection link isn't displayed to 15K users.  I additionally checked that question is more than a day old:  this is enough for protect option to become available.
62737
I noticed (now that  has been fixed) that you basically get two +2 rep bonuses for suggesting a tag wiki: one for the wiki, one for the wiki excerpt. Is this really intended? It seems odd to me, since I suggested both at the same time from the same screen. Does it work the same way with posts: do I get +2 for suggesting an edit to a post's title, another +2 for suggesting an edit to the body, and another +2 for suggesting an edit to the tags?
34354
There's a bug on the :      invites you to celebrate the end of a great year …with HATS! As you use your site, you'll discover hats and other items hidden behind certain actions. Collect all of them, some of them, or none of them, but be quick – the hats get put back in their boxes on January 2nd!   (emphasis mine)  I know this is just copy-paste from 2018, but 2019 hasn't been a great year[citation not needed]. Please change this to something neutral like     celebrate the end of 2019   Yes, I realize for some users here 2019 may have been a great year for personal reasons, which are important. Usually way more important than what happens on the Internet; this may or may not be one of the exceptions. I'm happy for you, but this question refers to the general mood here.
26675
The description for Hat Trick is:     hit the reputation cap on three different days   I just earned this hat, but this is my reputation today so far. Note that I have two accepted answers, so I didn't actually hit the rep cap. I hope to actually earn the cap, but I haven't quite gotten there yet:
121015
I would like to use many sites in the Stack Exchange network, but I need to login to each site separately. Though it's easy, can't we solve this problem? I know each site has a different url :( but is there any way?
386
During Winter Bash, users can earn hats. But sometimes it seems that a hat was awarded even though its requirements weren't (yet) met, or vice versa.  What could be the reason for this?
92154
Is there a button to access the Hatz on WB14 on the mobile app (especially iOS) and let me view the Hatz I have earned so far? Or is it only accessible with the website version?
72174
I really like how, in the winter bash, there are hats. They are pretty cool and actually encourage me to get badges, something I didn't care about before. I think there should be something like this, but all year round, to encourage people to get badges. Badges, to me, seem currently pretty useless and I never want to get any because...there is no good reason to. Hats: well, hats are just awesome
54313
On English Language &amp; Usage, I noticed that even the  user has hats.    In its case, how is the hat it is wearing selected?