system
A chat on subreddit /r/wallstreetbets
human
Its been my experience.

gpt
Ok so you are telling me when you let a short put or call expire worthless you dont keep all the premium? 
  
    
  
  
 The only thing that you have to calculate out is the initial commision or opening the trade, but after that, if you do nothing and let it expire, you keep the premium.. 
  
    
  
  
 So what are you talking about?? 'In your experience'?