Haven't been able to fight anything >6 above my own level, but I bet if I did kill a cr30 while being a lvl22 I would get a nice chunk of xp to add to my pile, even if it's the same amount that I would get for a cr29.
This has happened before, the devs make a change and ppl get po'd.
Don't get po'd because you have to change your play, take it as a challenge to learn to become a better player, take it as a challenge to find ways to improve your build, take it as a challenge to find better gear for your character.
Howmany people have actually gone out and explored the entire world of NS, not just the same old xp hunting grounds? Where does Angmar live? Where does Quit'yot live? Where does Varnessikla live? Where do you get those monk gloves that have sweet d10 damage on them but have the nasty -4 con?
Maybe if you went out and explored, you would find a place where you are godly strong to the enemy and get sweet xp as a reward for slaughtering them.
When faced with adversity there's two kinds of ppl, those that [censored], complain, and quite, then there's those that step up, take the hit, and say, "screw this poo (these words of rhyme are an edit to soften what i said initially...), I'm gonna move forward and prove that I am better, I will find a way"
Which are you?
P.S. I'm the second kind, I'm so
I know there's GOT to be a secret door in a certain crypt in the game, because when I explored everything I could see on the map, I only had the right half explored. I know there's something there on the other side, but I can't find the secret door that leads there, and it's driving me a little nuts. 
There's lots of stuff in this PW that's hidden pretty well; the ways to the gnolls or the lower part of the ancient road can be easy to overlook if you don't know they're there.
