So, an ad?
Threema, Signal, and Matrix are great alternatives, too.
What’s wrong with XMPP?
idk
Why?
I assume it’s Meta’s ownership of WhatsApp now that Zuck donned the red tie.
Why not just use Signal?
Or simplex chat or anything else
Simplex is good but they really need to rebrand their name.
What is the difference between this and Signal?
to start with, Signal is centralized (and prune to change business model and privacy policy any time in the future) requires phone numbers, not anonymous, bad multi-device support, hard to have multiple accounts (does it has multi-account support at all?)
Deltachat basically turns emails into instant messaging, so nobody needs to set up servers or instances, self hosters just need a working SMTP
Since the email traffic increases a lot (every message you send counts as an email), some providers might block your account after a very short while, on suspicion of some sort of bad behavior.
So… Its worse?
Shitballs! This thing uses mail for chat. It’s RIDDLED with open standards.
I’m not even mad. I’m amazed. But I stand by my other comment.