Sure, mods will always be necessary when it comes to public/untrusted comms, but just like I don’t want my telco or email provider to decide which/when my TRUSTED contacts can contact me, the same is true for the rest of their speech.
Jumping from platform to platform, server to server each time is a bandaid solution which is not censorship resistant, especially against some totalitarian oppressor. A real fix is a solution (e.g. protocol) that enables me to view a single person/entities/orgs comms regardless of what any middleman decides.