It seems useless to me, at least regarding the cybersecurity aspect. Of course, it's helpful when people ask for my contact information, and I don't want to share my phone number or email address.
But they still require information that could be used to prove or be linked to my identity for registration, right?
This means a hacker could still reveal your IP address, phone number, email, and your passcode. Likewise, the development team can access these as well.
I know I'm overly cautious about my privacy, but that's just how I am.
So if I claim fubo as a username on Signal, that means what? Nobody else can use that username? If so, it's another global namespace, same as Twitter; ten or twenty years in the future, someone's gonna want to be reclaiming disused usernames.
(What if I want to be fubo to some people, and MissCatPictures to other people? Can I do that from one phone? One phone number?)
Oh, so can I keep trying until I get to be fubo69? Nice.
(I am a heavy Signal user; it's my primary messaging service for people I know IRL. It's where I post cute pictures of my housemates' cats. I really want the Signal folks to get stuff right and not mess it up.)
I meant only to address what I specifically quoted. The feature of using multiple identities, separately for each contact, is baked right into SimpleX and works amazingly well.