If you're claiming that upvotes on replies count against the ranking of the parent comment - I didn't know that, thank you! If you're claiming that replies can

If you're claiming that upvotes on replies count against the ranking of the parent comment - I didn't know that, thank you! If you're claiming that replies can be "top comment" - I don't think that's true, but I've learned that HN has a lot of secret UI and features that are only unlocked at certain reputation levels, so maybe you're a higher-level Laser Lotus than I am. If you are claiming that "comments with replies" are more likely to garner upvotes _because of_ those replies - I don't believe that's true. I can't remember ever having read a reply and then going back to upvote the parent. If you're claiming that "comments with replies" are more likely to garner upvotes due to some shared underlying cause ("good comments get replies, good comments get upvotes") - while that's probably true, it doesn't affect my question of "why would you leave a comment that _just_ says 'upvoting for visibility'?", if that doesn't affect the underlying comment's ranking?