I'd like to make a somewhat unrelated observation as a new user and someone who is new to programming.

I've noticed a submission might get a huge amount of upvotes yet the highest voted comment goes against the article/post submitted.

I understand there are a few things that could be going on: you can learn from bad articles/posts; those who like the article/post submitted find it unfair to downvote just because they don't agree on a contentious issue; or it becomes a what side can out-vote the other side (the one against vs. the one in favour of the submission).

Is there a commonly held view on why this happens? Sometimes I click upvote to save an article I've not read yet, not necessarily because it is a great or good article. However, I also sometimes click upvote because there is a comment inside it that I find very enlightening. Would it help at all to be able to save comments like we 'save' submitted articles? My apologies if this is too unrelated and meant to go somewhere else (email). Please let me know if this is the case. Thank you!