> my posts are not visible to anyone
You have a 21 day old account which has posted like 6 or 7 self-promotional posts in that time, and basically nothing else. What did you expect?
From the HN guidelines[1]:
Please don't use HN primarily for promotion. It's ok to post your own stuff part of the time, but the primary use of the site should be for curiosity.
> What should I do?
Contact the mods by email at hn@ycombinator.com
[1]: https://news.ycombinator.com/newsguidelines.html
