Ideally this will be a platform used by people looking to self promote with a clear path from no followed to a massive following.
This idea is not bad. But it will make new posts cannot appear in leaderboard. I think it should have a catalog to sort posts.
Regarding to cryptocurrency, I think these features is not really attractive to own tokens. As Steemit, they encourage users voting in order to earn STEEM. As Minds, users can pay MIND to pin their posts in main board.
Anyway, all new ideas need time to complete. I think you will do better that. Good luck, friend.