I’ve always imagined that instant messaging shall be the way we allow mobile farming (i.e. farming on mobile devices), like an overlay lightweight protocol that can be run on mobile devices with the only purpose of creating a mesh network for end user p2p messages. E.g. perhaps implementing the Lightning Network protocol (over DBCs) where a mobile farmer can create channels where messages will be routed through, obtaining tiny fractions of SNT as rewards for it, which would be the mobile farming reward. So all separate from the nodes farmers which take care of Safe persisted data.