What do you think about giving individual users more power to moderate amongst themselves rather than having server admins do it? For example, a much more power

What do you think about giving individual users more power to moderate amongst themselves rather than having server admins do it? For example, a much more powerful "blocklist" type feature that you can share with others? So a could spend a bunch of time doing moderation, and publish a "blocklist" that other users could then install on their account so they don't see some set of people / content.