> The problem is that when there are any sides, they spend the top 100 comments rehashing the same arguments, often over a political bugbear or web design faux pas.

This is a problem with any upvote/downvote based site, in my experience. It only takes a couple people who are highly engaged and who have a lot of free time to refresh the comment section and downvote everyone who disagrees with them.

Some times I’ll write a polite and well-sourced comment correcting some misinformation here and the comment will go to -2 or -3 when I check back in 10 minutes. Information that goes against the angry narrative du jour is often not welcome. Later, as calmer heads read the article and peruse the comments the downvotes start to get balanced out and the comment might rise, but some times the first wave downvoters are aggressive enough to get the comment downvoted into gray text before it has a chance to be seen.