Mewards et al: Shorts DO hedge with out of money Call Options (Hedge Funds probably purchased April $7 Calls late 2014 and early 2015). And I totally disagree with your repetition of
Wilson went on a worldwide vacation for two months (pre cell phone days) and his short positions went against him to the tune of hundreds of millions of dollars where his primary broker forced the cover to protect the short seller and the brokerage firm.
Moreover it has caused the closing of a fully dedicated 100% Short Fund, the notorious & famous short seller The Feshbach Bros (which I brought a few successful short ideas to).
The essence and applicability of hedging a position is a tenet!especially when the insurance is cheap vs the unhedged exposure
AND
for those still unconvinced reread and DIGEST this tome on the life of a short seller recently in post 30038 by gifted Hedge fund manager Whitney Tilson (even AFTER the 60 Minutes piece on Lumber Liquidators he shorted MORE! and is profiting handsomely.)