That is pretty funny - since the initial pump the price is down 87% - anyone shorting could have covered in the last 3 months.
But, I have some really bad news - the shorting that is always posted about on every OTCM share selling scheme - and it just doesn't happen - it isn't economically feasible to short stocks below $2.50.
Why don't you post your DD to prove GRNF is being shorted
Let me guess - there is a short squeeze coming soon.
Shorting on the OTCM rarely happens - first shorting is for sophisticated investors only as it isn't a pedestrian endeavor.
Also, shorting isn't illegal - one believes that the price is going down - just as Longs are betting the price is going up.
In being long you can only lose what you invested - taking a short position you can lose more than you invested.
Most OTCM investors don't have the capital to short a penny stock. And they certainly don't have the knowledge.