dive into quoting mark
There are no exceptions to Postel's Law [dive into mark]:
[T]he things I write in this weblog are not spec text. Apparently there has been some confusion about that. Specs are things with important-sounding words like "W3C Recommendation", "RFC 2616", or "ISO 8879" at the top. Weblogs are things with cat pictures at the top. If specs are unclear, they should be fixed by things with ?errata? at the top. If weblogs are unclear... hey look, cat pictures.
Of course, this apparently means I need a cat. Or at least a picture of one.
Also via DiM: Just Is a Dangerous Word.