That depends entirely on how it's structured. There's other ways to short a stock indirectly that don't involve equity or margin calls. You're quite right thou

That depends entirely on how it's structured. There's other ways to short a stock indirectly that don't involve equity or margin calls. You're quite right though. (Keynes quote) No reason you can't work actively against them and publicize their lack of a sustainable revenue model compared to similarly valued companies while you maintain the position. Nobody said you had to be silent while your money is on the table. I'd happily work against them.