The following author names are now reserved only for me: "Elliot Temple", "Elliot", "curi". They are case sensitive. People can still use names like "E1liot Temple", "Curi", or "elliot". If they use a reserved name, their comment will show up as from "Anonymous Impersonator".
This policy is only retroactive a few minutes, there are still a few recent impersonations in comments. I am not the only one being impersonated, but I think it's more confusing and problematic to impersonate the admin.
Edit: Harsher anti-impersonation measures were taken due to people putting effort into workarounds.
Edit 2: Only the 3 literal names are reserved again. They are now colored green and bolded if they're definitely real. So people can make stuff that looks identical if they want, but it won't have the special font.