duplicate usernames i'm btw also against. i see it just getting a fucked chaos (seeing "vetting" as no feasible option whatsoever). i feel it not a good solution overall to tackle an apparent issue (here: name squatting), by introducing more issues. just let it be, guys n gals: humanity isn't good, that's just how that is. we must see to not let this lead to a policing state though, cause that is *much* worse still.
introducing all kinds of circumnavigation (here: duplicate usernames) also doesn't sort the issue; it just makes new ones.
cc @FreeTrade