Apparently a lot of people don't like the cold overlay. I don't think it's as bad as others are saying but maybe it could be toned down just a tad. Having the screen stay blurry constantly can be a bit annoying, maybe having it come and go over a 2 minute interval would be enough to remind people of it without being too obstructing or intrusive.
Come up to the snow at night, then reconsider that. I have a buddy who keeps spawning at the house next to me, runs over but can't find the house because he's blind. Keep finding his dead body complaining next to my house.
It is nearly impossible to see anything when you get cold.