How is it legal for short interested groups to put out any kind of report? Doesn't that act itself normally cause the stock to drop?

So if i was in charge of one of these short interested groups I could just short the stock and run a negative report? For instance, Citron Research published something about Nvidia and the following day the stock dropped, so could their short interest have been covered by that drop they created?

Submitted June 25, 2017 at 07:58PM by dogsdick http://ift.tt/2u53N2C