User Getting Around R9K mode

User can continuously spam in chat, identical messages that r9k mode should stop. Does anyone know how he does it, it is ruining my chat. No invisible characters are being used, and no modification of the message. It should be blocked by r9k like everyone else

Hi! This is a forum for 3rd party developers. You might look at sending a Tweet to @TwitchSupport or contacting explaining the issue that you are seeing with r9k mode.