Just did my first peer-review... it can be difficult because no context is provided, is there? What if the comment is, "I completely agree!"? Now, not particularly great content, but certainly sounds civil. But what if that comment is in reply to someone calling someone else, "you are a puss-filled jerkwad that should be forced to receive many awkward hugs from Ted Cruz!". It wouldn't be civil to "completely agree" to that nasty note, and yet I just gave it a big thumbs up!