It isn't a viewpoint. It's a fact. I'm using signal for almost a decade now and only managed to get a dozen or so people to use it in any capacity. Most keep using whatsapp as their primary method of communication anyway.
Meanwhile, I have been using Signal since the TextSecure days, too, and practically all my contacts are using it these days.
Meanwhile, I have been using Signal since the TextSecure days, too, and practically all my contacts are using it these days.