You're right, I just don't understand that mentality though. You don't have to stop using FB Messenger immediately if people you know use it. If you want something better though, you have to start using other products, and eventually it will be big enough that you can ditch Messenger. Plus I'm actively asking you to message me on Signal, so just do it. What is the problem? I have apps that I actively dislike and are bad for privacy, like Snapchat for example, solely for one person, just because they're busy and prefer it and I care about them and keeping in contact. Why do so few people seem to do the same for Signal, even when they complain about the mainstream apps?