Most users don't care that much—I know that because if they did, we'd never hear the end of it—and those who do tend to be the litigious type who raise two new objections for every answer you give them. To play that game is to agree to a DoS attack on yourself. It sucks up limited resources that should be going into making the site better for everyone: https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu....
That said, we're 100% in favor of satisfying users' curiosity about how HN is operated and moderated. We just do it ad hoc, by answering specific questions, rather than building meta facilities. From my perspective the issue isn't secrecy, it's efficiency. If meta facilities would actually be more efficient, that would be a great reason to build them. I would love it if software could alleviate more of our load. Unfortunately, I fear that they would have the opposite effect. The founder of a well-known forum that is older than HN once told me that introducing a meta section was the worst mistake they had made and that we would be crazy to do that.