> You'd think that should be the case, and given 2119 it is all that makes > sense, but there are way too many cases where the subject turns out to > be (explicitly or implicitly) "authors of future RFCs".
In RFC 2542 ("Terminology and Goals for Internet Fax") I wound up using a notation {1} {2} {3} to replace MUST/SHOULD/MAY when talking about what future RFCs should do {1} there is general agreement that this is a critical characteristic of any definition of .... {2} most believe that this is an important characteristic of ..... {3} there is general belief that this is a useful feature of ....., but that other factors might override; a definition that does not provide this element is acceptable.