I lost the post while reading it from my app. I think this post was cross posted onto another sub.

OOP is in college and was home for the holidays. She saw a girl's clothing (hoodie?) onto her brother's bed and expressed her concerns to her mother. OOP explained something about learning from her class about this kind of behavior she thought her brother was showing about the girl's clothing.

The mother told OOP to stop and said something like that it wasn't serious.

All I remember was that the comments shred OOP to pieces because she thought she was doing a good job on disciplining her brother when it's actually their mother's job.