Not caring about likes and dislikes.
There's a really popular web comic that has enormous amounts of views daily and hundreds of chapters. One day I read a comment that said something like, I don't remember at all right now, but let's make a fictional example like "Wait a min! That new character in this chapter 332 is the same person as that silhouetted woman we saw years ago in chapter 22!" and it got literally 10 000 upvotes, but because it also got two downvotes, I got mad lol. It's not my website, comic, or even comment. It got a gigantic amount of upvotes, 10 000, yet I could only focus on the fact that a couple of idiots gave it downvotes. And that site has a stupid design where it shows both upvotes and downvotes instead of just their sum.