I’ve found the more I know about the topic at hand, the more wildly many of the comments seem off base, even the highly upvoted undebunked ones. Its harder for me to judge topics I don’t know much about, but I have to assume it’s something similar.
That is true for articles as well though, I find comments typically have better info than the articles. It is more likely for some of the comments to have been written by real experts than that the article is.