We're on the fediverse, if you don't like one server you go to another. Maybe you moved here from reddit? Systems can be created with anarchism in mind.

If the list is such an important resource that managing would give the person / people too much power, mechanism to mitigate that could be implemented either from the organizational side or from the technical.

Examples for organizational mitigations could be:

• management of the list rotates between members of the community
• the power to make decisions and the role of management could be split: the community decides on a policy, the people responsible only implement the policy

Technical mitigations might be:

• design the list to be decentralized, like the fediverse where multiple list exists, they get federated and noone can monopolize the knowledge
• list are maintaned similar to code repositories where everyone can make a copy, change it, fix it etc.

Also like... why would you do that in a world where nobody else does that? Growing up / living in a society where sharing, solidarity, equal access to ressources etc. are the norm, its hard to imagine this being much of an issue. There wouldnt be a profit motive, being in a position of power would be undesirable and maybe even looked down upon and you could spend your effort for something actually fullfilling. But even if that issue would pop up, a society attuned to a anti authoritarian life style would be easily challenging that situation anyway. When capitalism, the state, and hopefully other systems of power are out of the way, this small problem would probably get dealt with in a single meeting or mediation session. Because its so miniscule in the grand scheme of things.