I don't buy his arguments. It's one thing to say we have to be on Google Play Store or we have to use phone numbers despite the privacy implications because that is what people use. But ignoring much of the developing countries (see whatsapp), China or the people who are your strongest user base by saying "you can just" isn't pragmatic at all.

Nor is it actually reasonable that we should expect to or rely on a few people to secure something that should be a fundamental and a fundamental right of communication. Not to rant to much, but it feels like going to parties (conferences) and talking about how much good you do and then being dismissive in the real world is how much of the security industry operates and that Signal has just become the latest excuse to why nothing has to be fixed.

I'll give him credit for the whatsapp integration though. More people in the field should consider working with companies where they can have a lot of impact.