Ok, I guess I should chime in here, since I am, once again, under fire as an "Admin Abuser", by one of those I have supposedly wronged. You make a couple of wrong assumptions here, Tricky.
1. I have to inform you that I am banning you or restricting your comms. I don't. Any Admin can add a Ban without being in game.
2. I have to warn you. Your warning, as ThatNub stated, is the MOTD. Thinking that you are going to receive some type of "Last Chance" warning, when you already know how to act / behave is just, well, outside the realm of reasonable expectation.
I also took an afk from the game, joined Spectators, after I saw what you typed in chat. The thing that took me the longest was deciding whether just to remove your comms for the day, or give you a 1 day ban completely. I don't tolerate racist language in any shape, fashion, or form. Period. I was leaning toward the ban, honestly, because for some reason, you think its fun to troll me in voice chat. Well, that is now over. I went with the comms ban for one day, and I stand by that. Now that you have a history, should you continue any comms violations, the punishments will be extended to greater lengths of time. Continue to troll me or any other Admin, and we shall move directly to the Ban portion of the options.