Previous posts only count if the post has had significant discussion which this one doesn't appear to have had in the last year. If you think there's something else wrong with the submission just email the mods.
That is what flags are for, it's just that the post was a valid Show HN and accusations like 'doing it for clicks' belong in flags and emails to to moderators and not in the thread.
(And somehow the author made it to front page but is not here to discuss his app as would be also be expected for a "Show HN" post)