Is kbin a good place to set up shop? I don't really understand the advantages/disadvantages of different instances. I made an account on lemmy.world first, but I remade my account on kbin a few hours later because I like the kbin interface a little more.

Also, if there's no karma, what are the "reputation points" in my profile?

Is there an easy way to shift an account between instances? Or do you need to start from scratch with a new account on each instance?