I think u should integrate some in app points or token system inside your wonderful apps. So others can use those points to promote their post(s). N also it would be wise that your apps use their own ranking system instead of blockchain based reputation. That way a lot of users who r the targets of whale attacks only against personal grudge or bias will move to ur apps. I hope u got my theme about ur apps.
N also try to integrate some rewards against reports/complaint actions for the readers.