system
A chat on subreddit /r/wallstreetbets
human
I understand that, but for every short position someone has to buy. There has to be an open long position too. This isn't just volume, this is 800k open interest. 
  
 Unless someone is just abusing some sort of algo buy?

gpt
The market maker can hold the longs,   
 and hedge the position with short stock.  
  
 Market makers often end up holding options in inventory, and hedging them to not have any value fluctuation in their inventory. They want to be in the transaction business, not the portfolio business.