Besides, and related to “not being a platform”, it helps break the idea of everyone having to share the same space with everyone. If two groups can’t have a healthy relationship, it is healthier for them to cut ties with each other. Meanwhile, the oligarchic platforms being as big and with barely any internal borders makes for the toxic environment of places like Reddit and Twitter that predates recent polemics.

Something though, I think it’d be better to have a cut-off of MAU or some other relevance metric, as otherwise smaller instances defederating from major ones may sneakily make the major one seem more isolated than it really is.

A bit scarier than the previous one at first glance, but the single line explanation including everything needed to understand makes it easier to read.