I might choose to use Signal. I might prefer not to have that choice broadcast to all my contacts (well, all those who use Signal). Yes, discoverability... I

I might choose to use Signal. I might prefer not to have that choice broadcast to all my contacts (well, all those who use Signal). Yes, discoverability... I'd rather have that explicitly opt-in, not a default behavior. I view my use of Signal as information I'd prefer not to share with some -- even if they are in my contact db and even if they use Signal. P.S. Yeah, I see some discrepancy between this and the way Signal is designed and the goal to minimize metadata. Ok. Still, it was a creepy moment for me, seeing this person's name pop up in a Signal alert.