Umbrus

I just got to my first winter, and noticed this on the map. (See attached pictures). Some of it looks normal, but some of the snowfall if really choppy(chunks next to each other, one having a ton of snow and one having none) and I don't know why when some of the rest of it is so nicely distributed. Does anyone know why this is happening or how to fix it?

Title. I just recently downloaded 1.15, and a few nights later I was mobbed by around 20 tainted drfiters(My stability decayed quite fast, I'm not sure if it is faster than before, but it feels like it. The # is not an exaggeration). The wiki says only 7 can be spawned at once. While i don't have an exact #, it was around 20 and most definitely more than 7, and they all were tainted. Did the 1.15 update change it/is this a bug? Additionally, when I killed them, they seemed to restore far less stability than before the update. Again, intended change or bug? I wish I got a screenshot, but I was busy being mauled to death by 20 tainted drifters.

Adding on a related idea, why not have a few consistent celestial bodies that grow larger and smaller as days pass(in a form of mock orbit) and represent/determine seasonal changes on the world to reflect the celestial cycle. Something of a celestial, year long clock that generally tells you when a seasonal change is coming.

Title. I was wondering if the night sky and stars are the same after every night? Could we have Vintage Story Astronomy, or the in game equivalent of a North Star to help us find our way?(Even if a bit unnecessary given the mini map). Or maybe constellations to see, although those people create themselves. Is the sky randomized every night, or determined with the seed of the world? It would be fantastic to have a unique sky to look up at every night as I stand on a few block high pillar while on my journey to find a desert. Are any of the things I described currently in the game, and if not, what are your opinions on implementing them?