Not everywhere though - e.g. lemm.ee tries to keep things open, at least on the instance level, and the anarchist servers (chiefly lemmy.dbzer0.com but iirc slrpnk.net as well) very much do not remove things that many people would expect them to if they had been more driven by a more authoritarian mindset.

In our new community [email protected] for instance, I very much hope that we can remove comments that attempt such a shouting-down as would make people feel unwelcomed to be there - regardless of their political affiliation (so long as the people being shouted down do not DESERVE it for trolling, e.g. “my reason for helping the less fortunate than myself is my belief in the Christian God who guides all my ways” is absolutely fine but “your gawd is shit and u r too, l0s3r” is not).