> I e.g. constantly see people whose phone number I've already deleted appear on my Telegram contact list "X joined Telegram". Telegram knows I had the number at some point. This would never happen with Signal.
This literally happens with Signal. And it makes sense too, the message that Signal gets telling it someone is now on Signal is presumably the same one letting it know it can use encryption rather than SMS to talk to that person.
This literally happens with Signal. And it makes sense too, the message that Signal gets telling it someone is now on Signal is presumably the same one letting it know it can use encryption rather than SMS to talk to that person.