I try to think of systems that are stable and can scale up to cover everyone (this is also a pipe dream, since people aren't purely rational). The idea of no one in charge, and the community deciding and enforcing everything can work up to a small town level, but a national or global level, it falls apart.
Some things, like major infrastructure for example, are necessary to have, but impossible to fund through voluntary means. No individual or small community has the money to build it on their own, and getting everyone to agree on what exactly should be done for any given project is damn near impossible. There needs to be a central planning authority of some sort, and they need to have the funding to execute these types of projects. Now what scale and format that planning authority has is the heart of every debate on which political system is best.
I am being genuine in my arguments. Political discussions are no fun when the disingenuous trolls take over, even if my sarcastic nature leaks out and I come across that way sometimes.
That first step is a doozy. And is basically the step that every political system gets kind of stuck on. The goal is simple enough, but the actual "how" of getting it done, not to mention how to maintain it once you've achieved it, is enormously complex.
And the society without money thing I don't think is actually possible, unless you want to go back to a purely agrarian society. Money, at it's core is just a placeholder for resources to simplify bartering. The systems we've built around it are often fucked and can go, but money itself is just a useful tool.