Always thought this rule is hilarious because the fact that such comparisons are so overwhelmingly common that they needed to address it with this bitchy little rule (adding one link to an example per word is a classic tell that an internet moderator is spending their highly compensated moderation time Extremely Mad lol).

However, rather than understand the obvious explanation for it, that reddit and HN's karma systems encourage performative comment behavior with people trying to be epic for the peanut gallery, they make the boneheaded decision to just assume it's an "illusion". It's like Dunning-Krueger but for their theory of mind and general emotional intelligence, with the cause being obvious enough that I don't feel I need to name it.