I'd like you to explain to me, how a brief discussion over how we're going to do a job, after which everyone works at their own pace with no further supervision is the same has being the a president, CEO, or even boss.
If I was to "set up" a community, I'd find begin by building a society as devoid from hierarchy as much as humanly possible. Everyone would have a voice. Since, you know... If I started my own community, it would be with like minded people, who also want to create an anarchist commune.
After that, I'd work towards self-sufficiency. Since you know, the community would be small.
I totally agree that it wouldn't work on a large scale... But that's the thing. Society needs to become self-sufficient in a small scale before we can make real change on a large scale.
We live in a pretty chaotic world with leaders, I think.