Earlier quoted context omitted.
What would you say are the cons of Telegram? I've been highly impressed with the UX for quite some time, but have refrained from pushing it (and the likes) onto friends. My family and friends seems to have slowly drifted towards signal, and I haven't bothered affecting that, but if I would go from a pure UX, I'd suggest telegram. So, I'm genuinely curious to know others' thoughts on it. I have only limited knowledge,…
As other the other answers state: It's them rolling their own cryptography. Also, not having E2EE in group chats. Their UX is really good and I agree with you, going from that alone I would always suggest Telegram too. There are other considerations too, like that fact that I often got notifications that someone joined Telegram but that person was a friend of a friend and not in my personal contact list. One of my fr…
If you're in someone else's contacts, they'll get a notification when you sign up too.
Contact information gets uploaded (Name, Email, Phone Number) so that they can generate "rich" push notifications, as the server issuing the push has to produce the message (no code can run client side).
More info here, though could be outdated (2013): https://news.ycombinator.com/item?id=6915194