Dear @mahdiyari , i have the following suggestion for steemfollower :-
(1) Do some rewards in the form of SBD points or upvotes to active steemfollower user. Just remeber that its the active user of steemfollower who will take it forward.
(2) Today who is a minnow, tomorrow may become a dolphin and may at some point down the line may become a whale. But one thing is pretty sure that the steemian who will be making its journey from minnow to a whale with the experience of steemfollower will never leave steemfollower and even after becoming a dolphin it will continue with steemfollower and they will bring much more to steemfollower to grow its community size, but again there must be motivation level and for that you must have some sort of provision through those people to reward or some random vote to the the user of steemfollower(particularly new user) and that will bring more user to steemfollower.
(3) The community size in steemfollower today is 4000, may after some time it will become 10000 or so, but the most important thing is how many of them are active user and how to make them active is ur role. That can be done through rewards and some sort of free votes which will keep their urge to do good afloat.
(4) Some issues like at every 10 post one error is likely in that way people are losing their sbd points and i think it should be sorted out.
(5) Resteem service is a also an option , but i am not looking much into it.
(6) Please do hold some monthly contest for regular and active user and this will bring mass to steemfollower, not to forget the community size will bring more success and recognition to steemfollower.
Thanks a lot and have a great day...