system
A chat on subreddit /r/NoStupidQuestions
human
The idea of red flags is gaining in popularity, I don't see this as a helpful way to evaluate anyone. There is always more to any given situation than meets the eye and without taking into account all factors and the consistency of questionable behaviour you risk simplifying a complex situation. Also, is there no room for redemption in your heart... you would judge a person on what they did 11 years ago? People do change. Look at the person that's in front of you.
gpt
i think it’s partially because people date from apps so much more now. if you met someone through friends you could ask about the person. even meeting during a social event or anywhere irl gives a person more grounding and context. 

but when it’s a meet from swiping, you have no idea about a person. people look for red and green flags in attempt to vet the person, but you’re right, people are too complex to reduce to red and green flags based on such subtle factors. 

if she’s not allowed within 500 feet of a school though, yeah that’s a red flag.