Ask HN: Why was my Show HN flagged?

Possibly because all you have ever done here is post Show HNs. You haven't engaged in discussions outside of your own posts. You have not shared anything that was not your own work. Hard to say for sure why people flag, but your history looks like someone who is using HN solely for their own personal benefit, not trying to be part of the community.

https://news.ycombinator.com/newsguidelines.html "Please don't use HN primarily for promotion"