Alright, first of all, I am writing this as a result to my salt levels reaching an all time high, but I also wanted to share my thoughts about this topic and get it out of the way.
The game can be fun and all that, but because of the sheer randomness and the punishment you get for not being lucky enough to get x thing in your world in that specific time can either make or break your world, this is more or less leaning towards boss rushes but I think that some of it might apply to other ways of playing, so feel free to disagree, I don't intend to create any heated arguments, I just want to express myself.
This is all from personal experience, so I have some very specific examples to back up my claim.
I'm playing Wanda and I want to rush the ruins in autumn and I need marble to make my alarming clock and another ageless watch, while gathering materials I am also searching for marble sculptures, more than half of the world is explored, tough luck buddy, seems that the clock is ticking and you still haven't found your precious marble, looks like you will have to rely on the earthquakes to drop your marble, or just restart the world. I make another world, I find the marble, but tough luck again, no moleworms to be found. Okay, I make ANOTHER world and I find everything and I go to ruins, what I get as a reward is the smallest ruins branches. Let's say in another run, I don't get enough gems for the full setup. Okay, get that out of the way, and it is winter and I want to fight Klaus while also prepping for BQ, Deerclops and moving the suspicious marble pieces but again, tough luck, no deer to be found because their movement is so ******* random and the map doesn't show the deer so I have to spend precious time to find them and maybe I won't even since I searched for them in the biomes they are intended to appear in. I fight shadow pieces and some spiders aggro one of them and that piece despawns so I have to wait 20 days to even attempt this fight again and maybe something else will happen that will interrupt the fight and cause me to wait 20 MORE days, ah, such fun. Maybe I want to do my pearl tasks but I can't seem to find one salt formation or whoever knows what I am looking for in the sea. Okay, I did everything intended, and I start to make my mega base and it is exactly near a meteor field, guess I have to make another world and repeat the same stuff again and again until finally the gods bless me with a normal world. This could go on forever because there are many more instances of rng screwing my play time, and also others.
With all of this said, rng sucks in this game, I know it might not be a big deal, yes I know I am salty rn and I wish you a good day <33.