there's a false dichotomy in that reasoning

hosting arrangements and community arrangements don't have to fully overlap

just like we form cross-instance communities in federated services, we can form communities in P2P settings

the fundamental difference is that, under P2P arrangements, the community doesn't (have to) end up tied to any particular centralized single point of failure, and under its operator's authority

the communal governance structures that are growing in federated networks would be a perfect fit in P2P communication systems as well, and they'd be even more valuable there. we're not there, but we're not there yet; that's no reason to dismiss P2P systems, or to prefer semicentralized (federated) ones

CC: @kawaiipunk@sunbeam.city