[bgwalter]

The tangent explicitly talks about generic messaging services. Whatsapp and Signal have more money than gpg. Thinking about it more, it is not even a tangent, because TFA says:

"Use Signal. Or Wire, or WhatsApp, or some other Signal-protocol-based secure messenger."

[tptacek]

I wrote TFA. Signal is a nonprofit. The article says to use Signal-protocol-based messengers, of which there are several. Your objection about money doesn't make sense.

[krautburglar]

Looking at the revenues and the salaries, nonprofit doesn't mean much these days.