You cannot short any stock you want actually. Retail accounts would not be able to short this stock, as you would not be able to short pinkies or OTCBB stocks.
TKO is a hard-to-borrow stock which basically means only institutional traders can short it.
The fact is no one that posts here or yahoo board, regardless of what they say, is short this stock, unless they are working for a institution.
Keep in mind that most institutional desks wont touch a stock on the short side, or long side for that matter, at this price level.