Probably anyone can answer this. I'm probably just slow up the uptake here.
Anyway, when I click on any given article on the main page nowadays and look at the comments, I notice that there are now non-bolded links to a seemingly random individual's user profile just below each comment. They don't appear to be the name of the last person to up-vote or down-vote, nor do they seem to be the name of the last person to reply to said comment. I'm baffled. Why are the seemingly random links to user profiles there? It can't just be random, and I'm pretty sure that they didn't used to be a feature of the comment sections. Why are those there? What painfully obvious thing am I missing here?