Default instance blocks should largely replace defederation
Since what content users might want to see is quite unlikely to match which servers the admins tolerate, choosing instance on the Fediverse can be quite complicated, which is inconvenient and off-putting for new users.
For this reason, and simply that the Fediverse is stronger united, I believe defederation should ideally be reserved for illegal content and extreme cases. If Fediverse platforms would allow instances to simply block the rest for users by default, the user experience would be the same, unless they decide otherwise.
Ah, so you want a ‘hard’ defederation, that works just like it does now, and a ‘soft’ defederation, that users could opt to disable? Interesting.
However, as others said already, that would mean that servers now also have to federate with other servers that most users and the mods probably dont see, creating difficult moderation challenges…
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