But there's the chicken-and-egg problem. IM was solved for a long time, yet the masses didn't adopt the FLOSS version, because that required everyone switching

But there's the chicken-and-egg problem. IM was solved for a long time, yet the masses didn't adopt the FLOSS version, because that required everyone switching at the same time. Yet if people get to use the platform anyway as a secondary device, this could get these tools a significant steady user base that might grow to critical mass if/when a security/privacy scandal happens, disparaging the stablished players.