When you host your chat on somebody else's service, you don't have privacy (or confidentiality).
For me, that trumps all your points. It seems that for you, it doesn't. The world's a crazy place.
For me, that trumps all your points. It seems that for you, it doesn't. The world's a crazy place.
I mean. If that's truly a concern, it seems like you need to own and configure your own physical hardware and require VPN access to all of them. For us/me, the cost and inconvenience isn't worth it, considering the basically valueless data to an outsider.
That's not to say that everyone decision matrix is the same or should be... As you mention.