On: Technology preview: Private contact discovery for Signal

[dijit]

Telegram is not closed source. Unless they mean the server.

And in terms of server, Signals is "open source" but you can't run one yourself so how can you be sure really. :\

[snaky → dijit]

You're right, but I mean there's no messenger problem at all for vast majority of the people, and privacy and security aren't features people tend to choose over any other feature.