Round 'somethinggodawfullylongorwhatever': fight!

http://www.roleplayerguild.com/users/mamae12

That being said: why is parent account http://www.roleplayerguild.com/users/mamae still alowed to log in?

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3 Hours Later:
http://www.roleplayerguild.com/users/iamhart7
http://www.roleplayerguild.com/users/kekeke (why does that username remind me of some old bad guy laugh? xD)
http://www.roleplayerguild.com/users/dsgfhgkjh (hark! The keyboard sitters return!)

And another user banned yesterday was logged in, can anyone explain how the banning thing works? Like, are they just not allowed to post?