Ironic it's a straw-man itself to suggest the comment was advocating suppression. It wasn't. The point is moderation, and yes that means moderation that can be moderated as necessary. i.e A non-partisan framework that is acceptable regardless of if it is an adversary or it is an ally enforcing it.

Easier said then done, but perhaps this just means a type of Overton window. It's not legally enforced, people just come to learn that being reactionary is faux pas.

Clearly it's not plausible to provide an absolutist definition because things change, setting rules could undermine their original objectives. But for the points raised in my original comment; laissez-faire free speech is also widely open to abuse.