People are welcome to post their own stuff as long as it's part of a mix of unrelated/interesting submissions. What gets accounts "super deranked" is when they only post their own stuff or use HN primarily for promotion (this is in the site guidelines: https://news.ycombinator.com/newsguidelines.html).

Your account hasn't been doing that at all, so you're fine, and certainly welcome to post your articles if you want to.