It just takes a while. An individual meme, Even the chuck Norris one, isn't bad, but add I'm the number of memes per page, and it adds up fast. Now imagine three or four on a page. That leads to the band wagon effect. I pretty sure a long scroll meme has appeared on page one nearly every day for the last week. It loses its impact. Chuck could have been half the size and had just as much impact.
One the upside, I did upvote it. It was different from the long ones previously uploaded... And nobody ignores Chuck Norris