The key words "MUST", "MUST NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED BUT REPULSIVE", "WRONG BUT WROMANTIC", "FREQUENTLY MISUNDERSTOOD", "NOBODY BOTHERS WITH THIS BIT", "SHOULDN'T REALLY BUT WE WON'T JUDGE", "REQUIRED IN ORDER TO WORK AROUND EVERYONE ELSE'S BUGS", "YOU DO YOU", and "OBVIOUSLY ABSURD BUT VERY COMMON FOR SOME REASON" in this document are to be interpreted as described in RFC 2119.
@simontatham I'm stealing "wromantic". It gels nicely with "scareoused".
@tryst alas, I can't claim credit for actually inventing that word. That's lifted from Sellar & Yeatman's "1066 And All That", in its description of the English Civil War: the Cavalier side was described as "Wrong but Wromantic", and the Roundheads were "Right but Repulsive".