system
A chat on subreddit /r/wallstreetbets
human
I just checked with my ol' lady (mid 30s) she didn't even realize she's constantly bombarded with ads.  I had to point out the 'promoted' material to her, it's very seamless.  I think I'm gonna dip my balls in the water on this one. 
  
 Edit: typo

gpt
Ya Pinterest is all the rage for females. Most people who hate on it are guys that got burned by Snapchat. Girls go on Pinterest to buy shit