Shorting an OTC stock is rare and it is expensive for the potential return it might yield.
Often the sites people believe are reporting "shorts" are not reporting the "short" they think it is. Instead the site is only reporting that a sale of retail shares took place by an MM executing the transaction on behalf of the seller without the MM yet having the shares (nothing more than a typical retail sell order). The MM will however have the transaction sale completed (shares being sold transacted) in a few nanoseconds after the transaction. There is a move to change the "short" identification used for this form of a "short" so that people can more readily see the truth and avoid confusion. So far that hasn't happened.
I suggest reading closely the following two posts on this subject as they provide very excellent explanations.
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