lol sorry. When I wrote "private account" I meant that is a personal account (about me) and not that is set as private, it is public of course.
Here's today's example.
I posted a picture 8h ago, I have 5.5K followers, as of now I have 674 likes and 21 comments.
Of the 30 niche hashtags I used I am still in top 9 of:
* 1 semi banned hashtag
Didn't end up in any top very popular hashtag unfortunately, but anyway almost all of my new followers come from follwing/unfollowing, there is no sensible change thanks to being a top post. Sometimes I stay "top" on the less popular ones for days too...
As I said, it makes sense, so I'll keep doing this way, maybe when I'll finally hit the top9 of a popular hashtag the results will come.