system
A chat on subreddit /r/wallstreetbets
human
Oh no doubt RH is doing stupid shit while moving fast and breaking things.  I don't doubt that they've managed to screw up royally here.  Just trying to figure out the exact mechanism of their screw up and how he exploited it.

gpt
The mistake they did was an incorrect max loss and allowing credit from spreads to be used to reopen new spreads