Should we proactively block all accounts, of active people here, that fit the doppelganger pattern? ~~ MarkDilley

If you're talking about users with names like EIassint or MarkDiIley then yes, they are deliberately trying to cause disruption by pretending to be admins. I'm not sure who else might fit the "doppelganger pattern" Elassint, 09 24 2010