Many people see this as moderators controlling too much, but it's what happens in a mostly free system. Some people will over-achieve and 99% will underachieve or achieve just enough to get by.

This has been seen time and time again in any system involving humans.

A big issue with Reddit is that it has subs dedicated to encouraging mentally ill and anti-social behavior.

These things tend to eventually escalate into the real-world where someone eventually gets hurt or killed.