This thread is evidence that some are unhappy with the state of a core HN feature due to users posting what they judge to be low effort content, so it does get through.
The comments here are about possible mitigations. Based on this feedback dang has apparently now restricted new accounts from posting Show HN threads, so globally now there is a form of filtering users from being seen by others based on a heuristic.
Your initial comment is written with the impression that the poster wanting to improve their chances of higher effort content is making some judgement on the posters themselves as though they're conceited ('filthy masses', 'your royal highness') when they're merely considering one approach to reducing noise from their feed.
I myself in this very comment chain have already posted that I disagree that filtering by karma would help due to gaming issues but I don't see the problem with the user's goal.