I applaud Whatsapp for even considering this, but I would not trust it for now, and not just because it's closed source. But they need to allow users to authent

I applaud Whatsapp for even considering this, but I would not trust it for now, and not just because it's closed source. But they need to allow users to authenticate each other somehow, and they also need to change their privacy policy to match the technical change in encryption. Right now Whatsapp's privacy policy still says Whatsapp can intercept your messages. That's completely incompatible with the idea of end-to-end encryption also found in Signal. So unless they also change that, then they can't be trusted when they say the encryption is just as good as Signal's. Another alarming thing is that Whatsapp has in fact not posted anything about this. So as far as they're concerned they've never officially stated that Whatsapp uses end-to-end encryption. It was only Moxie the one who claimed that. Not that I don't believe Moxie, but at some point if Whatapp is discovered to have given the data to some evil dictator (or the FBI) they can just say "hey, I don't know where you got this idea that we can't see your messages ourselves, but we can." And they'd be legally covered by the unchanged privacy policy, too. So if Whatsapp wants the benefit of everyone saying how secure it is for using Axolotl, then they should first commit to that.