When it was done in a private leaderboard in a traditional in-person team working in the same office it was a great watercooler talk topic and code-golf team building topic.

I tried to do it in a remote work team with weaker personal links, and it felt like a chore, so this year I'm not doing it at all. No fun without the in-person code reviews and pair-programming code golfing.

Also many of us tried new languages of paradigms every year.