So, what is it that gets said about winter? Nobody likes it, everybody hates it, nobody wants to go out in winter because it's dangerous and hard to escape ganks and group fights never really happen?
How about this. Instead of fixing any of that shit (which they haven't done anyway), we simply implement a worldwide event that happens (similar to the meteor event) during winter to incentivize everybody to not only be on and active during winter but to go out to a certain location as a group with the expectation that other groups will be doing the same.
I for one think it would be hilarious seeing what sort of clusterfuck group fighting would occur with everybody on sleighs and skis. Imagine the numbers you see at meteor events... only now it's much more dangerous and chaotic because of the existence of skis, sleds and sleighs.
Like it or not, they exist. Winter exists. So do something with it or delete it entirely.