Well, din isn't rude, just blunt. Their jokes are harsher than the other clans but that's the only thing supporting the whole "rude" thing. Imagine a clan full of rainbow dashes. That's din. But of course nayru has a lot of cool people. They are a very nice lot. They do have the worst rep tho. I doubt you'll get frowned upon if you are placed there in the first place. If you leave din and go to nayru like I did, then you have a problem. But it really boils down to whatever you are good at dealing with I guess.
Nayru is rather...soft and immature. Often very whiny. Fluttershy is the exception. Din is very mature and hardly even needs modding most of the time on the flip side. A rough crowd but extremely fun to talk with. Din and nayru are two distinct opposites that's for sure. Farore fits somewhere in the middle.