I work in tech and I don't know a single person on Signal. It was already hard enough to get my family to start using WhatsApp over the years, and I still get messages from some of them over Skype(!!!!) for some reason. Frankly, I have no strength for yet another switch, I'm staying with WhatsApp for the time being.
Your mileage clearly varies. Like many people here, I also work in tech. Even before the WhatsApp privacy policy fiasco, there were a good few dozens of my contacts on Signal. Afterwards, there was a push like I haven't seen in all the years I've been using it.
Like many people, I'd definitely prefer having just one messenger, but now I simply use Signal with everyone that's on it and only have to open WhatsApp a few times a week. This entire thing has to be seen as a process IMO.
Pidgin with a shitton of plugins. If the only problem is the migration, that still works as a single client, albeit with drawbacks and hiccups. (I collected them at https://github.com/petermolnar/awesome-pidgin-plugins and yes, it'll need to be compiled, even Pidgin itself for some of the solutions. There's nothing user friendly about it, sadly.)
On the other hand... the only system I never had to migrate off is IRC. The funny bit of IRC is that it's not private in terms of security at all, but because it's anonymus, it still feels like it.
And so I keep thinking about needs when it comes to privacy: what do I really need in the context of internet communication? Anonymity, privacy, or both?
