I'm not saying they need to grow. I'm saying that arguments resting on the importance of phone numbers to the growth of their social graph are also resting on the idea that signal must grow. I am, in fact, saying that while this may be important to them it is not strictly important to me.

And I never said everyone I need to talk to is on it. I have like 6 different messaging apps and accounts because nothing has everyone. And I'm pretty conservative about which ones I'll use compared to most people I know.

I would rather use signal than most of those, other than the fact that I also frequently need to communicate with people who have no business knowing my phone number.