emberwit@feddit.detoFediverse@lemmy.world•This might help explain the spectacular launch of ThreadsEnglish
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1 year agoBeing able to use the same credentials for logging in is something else than creating a public profile for users that never signed up for the service.
I did not try Threads so I do not know. The post suggests that your user handle appears as a suggestion of a profile to follow for other people even if you never signed up.