@mahdiyari, love your service, i just made a post about it!
also:
have you ever thought about implementing a comment funktion to steemfollower? Maybe just ike the vote funktion, to maybe earn some extra points. If you think about it, it should have some restrictions to prevent abuse ( like only 5 comments per day or only approved members).
Any ways have a nice day and keep up the greate work, gz @davsner!