The way VC bans (other than an IP ban) has never changed with any of the patchs and has nothing to do with HradBa at all.
Befor the "unbanner" you needed to deleat TWO registry entry and then REBOOT...the next time you loaded the game those registry entrys re-created themselfs but with a new random ID #
All the "unbanner" does is constantly send a new ID # when the server asks for it.