From a different perspective, your last post, where you were promoting your own application, got flagged.
Yes, this is a fairly normal thing. In fact, if you had read the guidelines, you would have noticed that self-promotion is generally frowned upon in HN. It is not what the site is for.
Now, submitting again to protest that you were flagged and then just promoting the app a bit more, sounds like another thing that people will not like. So you'll probably get flagged again.
From a different perspective, your last post, where you were promoting your own application, got flagged.
Yes, this is a fairly normal thing. In fact, if you had read the guidelines, you would have noticed that self-promotion is generally frowned upon in HN. It is not what the site is for.
Now, submitting again to protest that you were flagged and then just promoting the app a bit more, sounds like another thing that people will not like. So you'll probably get flagged again.