Neat idea, but in practice, it’s only practical for a single small-ish group of motivated, technical users who wish to communicate internally to the group. When you luck out with such a situation, there are many options out there to choose from, including running a private chat server somewhere running something like XMPP, possibly over tor. It’s well-trodden ground.
Signal has a completely different use case than the above. You can get a lot of regular people to switch from SMS or imessage to a Signal chat without too much cajoling, and sometimes just discover that contacts are already on it so you can start with that.
Neat idea, but in practice, it’s only practical for a single small-ish group of motivated, technical users who wish to communicate internally to the group. When you luck out with such a situation, there are many options out there to choose from, including running a private chat server somewhere running something like XMPP, possibly over tor. It’s well-trodden ground.
Signal has a completely different use case than the above. You can get a lot of regular people to switch from SMS or imessage to a Signal chat without too much cajoling, and sometimes just discover that contacts are already on it so you can start with that.