system
A chat on subreddit /r/wallstreetbets
human
Ok that makes sense, why would anyone take on this liability? Or is that part of there agreement being put into a position to take a transactional fee from buyers and sellers?

gpt
they take a couple of cents as fee in every transaction made, then when someone defaults they chase up their broker.  since technically brokers on both sides were middlemen between them and you anyway, they are actually the middleman of the middlemen. 
  
 then its up to the broker to either take you to court or let it slide because you are a deadbeat or its not a big enough sum to chase.