Me too.
If you short something and the market moves against you (i.e. up) … and you want to exit your position in order to limit your losses (as many shorters sensibly will have) or the notional lender of the shares calls in the loan (depends on all the factors in the Investopedia link above) then … those losses become real losses.
As long as the market price stays up there is no way for a shorter to avoid a loss on paper becoming a real loss. It is merely delaying the inevitable.
On the other hand, GameStop’s price may yet collapse to below what it was trading at before this all started and LOL the shorters may yet make a profit.
It helps to have deep pockets.
What could go wrong with a currency called “dodgy-coin”?