If you want people in your community to post more nuanced in-depth takes, then banning flippant rhetoric and thought-terminating cliches is a pretty good first step to take.

Because if a flippant response is the only thing you ever get in response to a carefully written argument (and you will; because flippant responses are trivial to write), you're going to stop writing those carefully written arguments very quickly.

This toot inspired by a comment section on a particular website, but applicable in many places.