1. This paper asks the question "How often do users actually read the content of the post before they vote on it?" After recording the behavior of 300 Reddit users for a year, they claim that almost 3/4 of the votes for stories are based on the title of the story rather than the content.

2. The "Hacker News Guidelines" (https://news.ycombinator.com/newsguidelines.html) state that one should not accuse others of not having read the article before commenting: "Please don't insinuate that someone hasn't read an article".

3. The guidelines do not however say "Please read the article before commenting", nor do they say "Please don't upvote articles based solely on their title". Should they?