tbh there's significant interest in decentralised comms, at least from the geek community - the matrix.org server alone is pushing out around 1500 msg/s atm and we're having to panic around finding faster hosting hardware as a quick win whilst working on longer term homeserver scalability work. obviously this needs to transplant into mainstream interest, but we're hoping that clients like Riot will get the UX sufficiently good to bring decentralisation to the mainstream folks otherwise stuck with WhatsApp and friends.