My interpretation isn't that no one can talk about the rules, just that the comments on an article should be about the article content. You could still post your own Ask HN to discuss the rules.
A lot of off topic comments would be better served being made into full-blown blog posts (even if the author has no blog otherwise; one-off pages like Gists work fine for this) and then submitted. If HN wants to talk about the topic, the submitted page will get voted up like any other article, and discussion will ensue.
Generally, Ask HN topics shouldn't be meta discussions [nevermind meta complaints]. There's a feature request policy, and it's a potential conduit for bright solutions to policy problems that bypass debate.
