How so? How many HN comments have "gone viral"? How many news stories are about a HN comment? How many politicians and journalists and pro athletes and Hollywood celebrities are commenting on HN?
Any given HN comment can receive only a theoretical maximum of 250K upvotes, if (improbably) every registered user upvoted it, and those upvotes would be superfluous anyway, because they would only bring the comment to the top of a single HN submission.