This idea was in my mind for few days.
Basically to do premium membership which will cost around 10-15$ per month or three month.
And buy real good auto approve link list from major developers for major software like Scrapebox, GSA, etc.
This way people will stick to service because it is great quality, plus every month few new lists to post instead of posting lists from all over the internet which I don't like personally to bump in to same list again and again.
Sort of major group buy of link lists.