However, that rant was mostly irrelevant. Can you point to _ANY_ application, operating system, or anything else that has any issues whatsoever with an "_" of all characters?
at the time of check-names, i outlawed _ as a side effect of punting. in order to strip/prevent newline characters in PTR targets, i had to be able to refer to an RFC (lest people come to me with many individual sob stories about this or that special character that either should or should not be stripped/prevented in gethostbyaddr().) the only RFC i found that had any remote chance of getting me off this hook was #952. ergo, _ had to die in order that my inbox might live.
but it was wrong, and the need for it is past, and it's time for redress.
does this mean that i can get my .com delegation back? its to support ADA-act compliant web servers. --bill