That's how it works now. Communities decide what things they need by voting for sewers, road, libraries, schools, etc. Community members pay for these through taxes. And if they don't pay, they lose their homes / go to jail.
So in other words, communities can voluntarily decide what to do, within strictly defined limits, and if you don't agree with it, we will use violence against you to ensure conformity.
How do you expect your 'communities working together' to work when people there don't contribute their fair share? Just let them get away with it? Your community will crumble really fast."
Do you need to be goverened? Do you need to be told what to do? Do you sit idle unless your master's lash is at your back?
You're still viewing anarchistic societies through a statist prism.