I do not know whether anybody else has already said this, but Lemmy could really use a feature that would allow individual users to block instances. I think it could have spared some of the defederation word wars that have been going on lately, since that would be an individual choice rather than a collective one.
Just a thought.
It is currently in development: https://github.com/LemmyNet/lemmy/pull/3869
Glad to see that. Personally I really enjoy having my worldview challenged, but I can also get behind why others do not.