> who support ephemeral discussions and/or an explicit data retention policies Matrix's variant of that: https://brendan.abolivier.bzh/matrix-retention-polici

> who support ephemeral discussions and/or an explicit data retention policies Matrix's variant of that: https://brendan.abolivier.bzh/matrix-retention-policies/ https://brendan.abolivier.bzh/matrix-retention-policies/ > In case that wasn't clear, in the XMPP model, the backlog for a room is kept on the room's server, not on every individual home server. In Which makes your history dependent on a plethora of different servers. Result: very bad usability > replicated on all servers No, this is misleading. It is replicated between servers that have users participating in the conversation, i.e. know the conversation anyways > which eats massive server resources I'd like to have a source for that. To my knowledge Matrix cryptographically verifying actions between servers (prohibiting various bad actions due to the decentralized nature of rooms in Matrix) and the implied DAG is really what needs resources