It does if you can't determine the accounts are the same. Right now HN does nothing to address these concerns. It is ridiculous anyone finds this acceptable.
So yea, you'd probably end up with a pile of comments that are more likely linked to [account X], but many of them wouldn't actually be. It would add a ton of noise into the system.
Is that enough to define a "style" to determine the rest of my comments? Is it enough to doxx me from the comments where someone else names my nick?