If this is really distributed, then off the top of my head I imagine you could possibly make some sort of reputation-based filter list wherein trusted admins can subscrbe to each other's filter lists such that when one admin blocks are user, it quickly propagates to other admins' lists. Somewhat similar to how email domain spam block lists work.
reply[seemingly negative thing] which is a decision (after hindsight), rather than a gap [scope creep]
replyOwnership of namespaces is such a hard problem, our society has had to form global organizations and some of our most secure distributed systems to make it happen.
replyWorking in the p2p space, scalable namespace ownership that doesn't get instantly ruined by perverse incentives is the holy grail. I don't think it is actually tractable in any "central authority free" system. Don't get me started on blockchains that tether names to the most perverse systems available and call it victory.
> which have been a nightmare on mastodon
replyWhy?
I get the impression that every attempt to make block lists ends up getting used to target people an admin of the block list doesn't like. I think the root of it is that the admins consuming the blocklist don't want to have to spend time on moderation and are remote from communities where the blocklist is happening. Also the scope of the blocklist is the instance. Compare that to community internal moderation (e.g. channel mods), where someone close to the community is invested in the health of the community and the scope of the block is the relevant community.
replygestures broadly is going to be one of the common answers from anyone trying to ward off spam
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