No, that's not it; it's because anti-abuse is a cat-and-mouse game, so while you can discuss it (in an appropriate setting like a junky meta thread you didn't start), you can't expect HN to be forthcoming with details, because those details lower costs for abusers, and maximizing costs is the whole ballgame.
Kibitzing HN moderation itself is one of our oldest pastimes.
Kibitzing HN moderation itself is one of our oldest pastimes.