system
A chat on subreddit /r/wallstreetbets
human
They're friends in the sense that they're 'FB friends'. People I met once, maybe twice. Some people even added friends of friends before that was considered creepy (there was a time that was kosher.) When FB came mainstream, everyone looked up every person they met every day, especially college people. If you were 14 when FB came out, you've experience a completely different version of it than I have.

gpt
Sorry. I was pretending to be your mom on facebook. My bad.