There is nothing evil about short selling. It would be smart to have a more dispassionate view of it. This is the stock market. Shorting is just another way to make money. Shorting tempers unsustainable emotional runs in stocks and the buy backs are a buffer to big drops.

And they help to keep the markets honest (no I'm not suggesting RVX is doing anything nefarious).

"....Writing almost a decade ago, Harvard’s Owen Lamont looked at 327 short-selling disputes, and found that stocks of the targeted companies subsequently underperformed, to the tune of minus 25 per cent, relative to the market. And an uncomfortable number of the targets, it turned out, had misstated earnings or were otherwise fraudulent...."

http://www.theglobeandmail.com/report-on-business/long-term-benefits-of-short-term-investing/article13990839/