Our default expectation is not that we’ll try to give every comment an airing; it’s that we’ll highlight worthwhile material. What counts as worthwhile material? That’s a judgment call, of course, and we’ll be making many such calls. We’re seeking to promote comments that are civil, informed, readable, issue-driven, and relevant to the article at hand.
— here. Percentage of comments that will meet all five of those criteria: .001.