This site definitely wouldn't benefit from "total freedom of speech". If tone policing were to become an issue, the metric for "hostility" could just be examined and revised collectively/collaboratively, so everyone is on the same page, if necessary. But seeing as how there's been like, literally no shitflinging on AG since its inception, I don't see an issue anyways. Being snarky or a little heated isn't the same as /pol/tier shitflinging, imo, and it seems admin is well aware of the difference.
Idk I think a little bit of fieriness, snark, whatever, in disagreement is normal and to be expected, but users here seem to know how to work it out without even needing to resort to heavy moderation.