What would be a just hierarchie?
"Most anarchists are comfortable with the idea of democracy, elections, and delegation of decision making. As long as it's consensual and democratic"
Most anarchists I met, not so much. Till the extreme point of "anarchists don't vote". Not even in a small group. There is a consensus or there is no decision.
I like the idea of doing things in a consensus. But only one person in a bad mood can then block everything. But when you remove that person, it is not really a democratic consensus anymore, but majority rule .. which is fine by me, but is probably not "pure anarchism" anymore.