Having read through the Help again, and having found this meta a nice starting point, I am still not satisfied with the policy guidance on comments.
A concise pieces of policy on comments was written by Brian at the end of the play styles meta answers. I think it's been overlooked or lost in the shuffle. To me, this post gets to the heart of what comments are to be used for. I'd like to see this post added to the Help on comments, in raw form or perhaps with a bit of editing. I think that removing most of the second paragraph, as it's "play style content based" or editing it would make it a better phrased policy statement about not arguing in comments.
