But freedom of speech is allowing all opinions, even when you don’t agree with them. And PCM rules include “Do not promote hate based on identity or vulnerability. This includes the use of slurs, echos, and/or Ouija style letter/word chaining. “Just a joke” is not, never has been, nor ever will it be, an excuse for breaking this rule.” and “Advocating, inciting, or participating in brigading is not allowed.”
If you don’t allow explicitly harmful or intolerant content like slurs or calls to genocide, who decides what is “intolerant”? If you allow only some opinions but restrict others you turn a community into an echo chamber that pretends to have free speech, which is worse than having no free speech at all.