It doesn't look like that might scale at all. In other words, it works because Mastodon is a very small, niche community.
Good thing is that the Mastodon instance owners use shared block lists for servers that are currently used to ban free speech instances; that infrastructure could also be used to create a collectively managed list of instances that are full of spam.
Good thing is that the Mastodon instance owners use shared block lists for servers that are currently used to ban free speech instances; that infrastructure could also be used to create a collectively managed list of instances that are full of spam.