"Exactly how does a shorter convince a legitimate company to stop filing? "
Very simple. The shorter "is" the company.
It's my assumption/speculation that the company (i.e.: Stephen Craig Lumb) is shorting the stock from the UK.
Disclaimer: My posts should not be construed as investment/trading advice and is not meant to be a solicitation or recommendation to buy, sell, or hold any securities mentioned. Please perform your own due-diligence and make your own investment decisions.