@jgoerzen @zeh #Signal is so far from perfect that calling it merely "imperfect" is absurdly generous. For the grandma use-case, #Wire is a drop-in replacement for Signal. Grandma doesn't care if her metadata links her to her grandkids, but forcing grandma's network of friends & family to get GSM/CDMA subscriptions & share their ph# is a stupid move that's both exclusive & privacy-abusing