Which is fine as long as you're happy to be "that guy". If I need to install RandomNewChatApp to talk to a client that's paying me $$$, I'm going to install it. Similarly, if a close friend or relative uses a new service, stubbornly saying "no, that's too awkward for me" is not the kind of person I want to be.

But I would prefer if I could just add them as an account to an app that I already have. And ideally an open-source, usable, attractive app.