Flagged for what? In this case user - me - was unaware that submitted content gets replaced when requested with Referer header mentioning HN. There should be a 'you cannot post this' warning instead of hidden post creation. I only noticed shadowban by accident: switched to logged-in browser to submit and went back to logged-out for browsing.
Flagged for being NSFW and devoid of interesting content. The average user, like you, is unaware that the content they are seeing is different from the content you submitted.