jz, 
Problems we are having with #Signal:
- It is and will remain centralized (clear strategy of not federating servers)
- It requires strong identifiers/selectors (phone#) to use
- Author disallows distribution by anyone but Google, although free/libre
- It keeps pushing away verification of fingerprint in interface
- It relies on Google+Amazon infrastructure
- Its funding is shady (OTF = Radio Free Asia = USG)
= clearly unethical choices, unjustifiable by accessibility or technological reasons.
