Nobody starts to SHORT a stock at .0001,
BUT what do you do if you shorted it at say .0005 (just a number here), and you can't BUY it back because "NO ONE IS SELLING".
Do you raise your bid (CUTTING INTO YOUR PROFIT MARGIN), or do you wait for the STOCK TO GO UNDER, which shouldn't be too long, with NO BUYERS.
If the company is trying to make a go of it, they will reverse split giving you a chance to get out, as you take the stock DOWN AGAIN. BUT PYCT HASN'T DONE A R/S
Your biggest fear is Volume, as that attracts attention and possible BUYERS. If NO ONE IS SELLING, YOU HAVE TO SELL (despite not having any shares) IN ORDER TO STOP A RUN, WHICH COULD CAUSE A MARGIN CALL FOR YOU, LETTING ALL H*LL BREAK LOOSE.
SO YOU "SHORT THE STOCK AT .0001"