system
A chat on subreddit /r/wallstreetbets
human
because the premium received was pennies. Like, selling a very far OTM option call for $0.02. The next strike may be trading at $0.01, potentially halving the profit if  they hedged.  
  
 Then also, recklessness also plays a part. If you win 100 times without hedging, why would you hedge the next time?

gpt
This is where gambler's fallacy would have helped. 
  
 'I'm overdue to get screwed this time.  Better hedge.'