I'd agree with this - so many of my non-tech friends are now on signal and seem to like it. The traction that Signal is getting right now feels like its the classic word-of-mouth organic growth that snowballs quickly. I bet their engineering team is getting stretched right now.
> I bet their engineering team is getting stretched right now.
Last week servers were unstable for about 24hrs. But they did grow by about 10x in approximately a week's time, so that's not entirely surprising. I think it's more surprising that they've been so stable so far.