Six years later, Edward Lewis is trying to take another stab at rewriting the document. (He's a good guy; I met him once or twice.) Now the dnsext mailing list has erupted again with arcane disputes and claims of mismanagement... it's like nitroglycerin for DNS geeks. I guess some protocols just can't be touched.
(And this is just software. Vince Laviano had some good stories about guys standing up in the IETF and making the case that of course the minimum MTU for IP can't be changed because they have a satellite in orbit that handles IP traffic with a minimum-sized MTU.)