Yeh because once you've played around with the RSA key, no normal ip changer will connect to your server, ya gotta customize that shit.
Although I don't think people liked the old days for the "old npcs or the old real map" I think they liked it because of the spells. There was a possibility of spamming ue 2x in 1 second before you got exhausted and thats what I miss about the old days..