I agree to some extent with your thesis. I think another factor is how many other words you have to see. This could even be a quantifiable metric. In order t

I agree to some extent with your thesis. I think another factor is how many other words you have to see. This could even be a quantifiable metric. In order to post a comment on Hacker News, you simply cannot avoid seeing hundreds of other words around it, dozens of comments. It is much harder to read and reply to a single comment out of context.