Also, the ones in this article are square shaped, so you can't even see total site growth over time in them, which would be interesting and relevant. I came he

Also, the ones in this article are square shaped, so you can't even see total site growth over time in them, which would be interesting and relevant. I came here to say that (although your other points are good, too). The title of the article is "Fascinating Graphs Show How Reddit Got Huge by Going Mainstream" but then they normalize away all of the growth info and make it completely impossible to see how traffic growth is related to anything they are displaying.