@saramg Geez.
If he was even half as smart as he was confident, he'd not only have realized whom he was talking to, but that Signal doesnt have a business model - or at least not in the sense that the other services he compared it to, do.
That is to say, Signal is funded by charity, and does not have a profit motive (so yeah, like donate if you use it and you can).
On the other hand they participated of the development of a cryptocurrency that focused on being private **and** usable by everyday people. In some countries WhatsApp has payements. Private money transfer is something I would welcome (though mobilecoin is a failure and should have been removed a while ago).
Recent commits suggests there will be be a paid subscription for online backups. Seems fair to me.