This question comes to me because since we cannot hop through instances (AKA transfer from one instance to another your account) I’d like to create an account into another instance, for research purposes, but if this ‘feature’ comes in a near future I’d love to bring my main account to said instance, preferably with the same username and if I have it “mirrored” (same username) I think that’d make it impossible.
From my understanding it should be possible, I think that’s the case with many communities/sites, but I’m not sure here.
I hope I’m being clear.
The op is trying to ask if deleting an account free’s up that account name again, so that a new account with the same name can be created.
Unfortunately I don’t know the answer to this but you could just test it out with a throwaway account.