Do you have any linked devices, especially ones using Molly?
I wouldn't sweat the username thing too much, as they are not meant to stick around forever by design. Better they break than get compromised.
this post was submitted on 02 Mar 2025
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Desktop signal yes.
Doesn't having them expire/get reused open them up to impersonation attacks?
It could, but that's why in-person or at least out-of-band verification is so important. Usernames are more of a thing you hand out in the moment.
I'm not sure if Signal mitigates username impersonation in some way though.
Hopefully by "taken" it means that it is in some kind of cooldown before it can be used again.
Signal has usernames? Huh. When did that happen?
A year or so ago? I think its part of their transition away from phone numbers?