My email account was virtually destroyed by a computer virus, on my Mac. Thus, I stay away from this whole thing by not even using my regular Mac unix account. Instead, I use a Mac guest account (a great inconvenience), I've created a new email account, then I subscribed to MO again, this time as Wlod AA.
Ma old (and still present) MO account is Włodzimierz Holsztyński. How do I preserve my MO continuity without being active under the old account name? I'd like now to use account name Wlod AA.
PS. How do I create a new unix user (i.e. a new unix account) on Mac? (It used to be very simple but Apple loves to turn their computers more and more into toys rather than computers). My macOS Sierra is Version 10.12.5.