Any negative news immediately finds support in the stock. Shorts are repeatably being squeezed as the stock finds new highs. Insiders continue dumping while the company buys back stock. Meanwhile the only return you get from NFLX is through the greater fool theory...there is zero dividend and the only return you'll get is by selling your shares to a greater fool and that might as well be the company itself or the shorts that are forced to cover.
Some day this company is exposed for what it is. In the meantime it's the best money losing strategy for shorts. If you short, you might as well hedge with calls. Or just straddle.