Questions tagged [winter-bash]

I noticed that the Stack Exchange sites are having a Winter Bash, and one of my friends received a hat on MSE. Why isn't this on MO? It'll be fun to have something like that here, wouldn't it? (I ...

I have noticed a link on my Mathoverflow page linking a webpage that explains an event called Winter bash. I have earned already earned some hat which I am using on different stack exchange ...