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Then someone registers @XNot with name XorNot and you're no better off.

• XorNot 12y ago
  Having name providence provides some amount of deniability though. If there's multiple accounts with the same or similar then it takes deliberate effort to create mistaken identity.
  • jarek 12y ago
    Not to mention a sufficiently motivated deliberate actor could get Twitter to hand over your account - particularly easy if it's completely unused...