I appreciate the effort you've been making to inch a bit closer toward the intended use of the site. I hope it isn't too annoying if I say so.
The tag HN uses is not [removed] but [deleted] and yes, if the post has no children, we don't bother displaying that. It's just there as a placeholder in comment trees. More importantly, though: mods never delete posts unless the author asks us to. The most we would do is kill a post, which shows as [dead] and is visible to anyone with showdead turned on in their profile.
There have been a handful of exceptions to that in 10 years, a couple accidental deletions and a couple that the legal department told us we had to do, but it is as solid a rule as we have on HN.