I know relatively few people that are {vacuous, boring, self-centered, capricious, overly sensitive, insensitive, uptight, etc}, but that could be because I don't hang out with people like that. And similarly, people that think that I exhibit those qualities - and I'm sure there are some - tend not to hang out with me.
I think that the point where you're ready for a stable adult relationship is the point where you're willing to compromise on {attractive, exciting, funny, etc.} in favor of avoiding people on the first list you described. And that's perhaps why dating is such a pain in the ass - not only do you have to meet a lot of random people to find the one that's compatible with you, but you also realize that nobody (including yourself) is perfect, and that to find the person you love you will often have to give up qualities that you like.
I think that the point where you're ready for a stable adult relationship is the point where you're willing to compromise on {attractive, exciting, funny, etc.} in favor of avoiding people on the first list you described. And that's perhaps why dating is such a pain in the ass - not only do you have to meet a lot of random people to find the one that's compatible with you, but you also realize that nobody (including yourself) is perfect, and that to find the person you love you will often have to give up qualities that you like.