That might be true if you weren't holding a volatile stock like JBII.
Here's how it works.
JBI rises on hype. You short against the box. This greatly reduces your liability and guarantees availability of shares to short, protections a normal short does not enjoy.
The stock moves up, you do nothing as you have a neutral position. The stock moves down, you cover your short pocket the profit and maintain your position for the next move up.
Lather, rinse, repeat.
It's actually a great strategy for traders, particularly those who got heavily discounted PIPE shares.
Volume and Volatility are what make the strategy work. All while reducing risk.