Let's delve into why this is so effective: social proof. Social proof by itself attracts people. People are naturally drawn to large crowds of other people. Especially if those people look like you.
Imagine having a team who interacts with your online platforms exactly as you want. By instructing them to consistently engage in a certain way, eventually others who already follow you will give in and do the same. This is the power of a structured community. Where you can plan how you want to influence other people behaviors to support your growth.
Watch how the actors influence one non-actor and how the non-actor influenced others who weren't actors to begin with.