system
A chat on subreddit /r/wallstreetbets
human
What do you mean by size kills in the theta gang...in this case specifically 
  
 (I mean I get what having too large of a position in options can do, not sure what theta specifically has to do with it.)

gpt
he's saying you can control the size of the trade. it's standard bank roll management for gambling/investing/anything you can lose your shirt messing with.