One minor point about the use of a directive(s) tag, where `!!directive`, `!!directives` or `!!yaml`, what if `!!` has been redefined by a prior directive?
P.S. Could someone please fix the mailing list to respond to the mailing list? I am sick and tired of sending my responses to individuals rather than the list. I try to remember but inevitably some get by me. This message is a case in point. I sent to to Zazaan yesterday.