HN is a common law system; the real guidelines are the guidelines page itself, and the "jurisprudence" of years and years of Dan (and Tom) writing moderator comments. But you also know you're a little off the rails when you've derived a rule that would prohibit, say, criticism of a book --- "Teach Yourself C In 24 Hours is a bad book". Of course that's OK!

But yeah, the big thing here is that the substance of my critique is on a different thread. It's disfavored to retype things you can just link to. I'd be irritated with me too if I just said "CATB is bad!" and left it at that.