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.
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.)
Sure, unless the username+suffix is already taken.