Well, I've been "flatlined" too (and not just one site either) but I was just intrigued when I saw that the flat traffic line appears to be a result of them controlling several parameters in coordinated fashion. It is illuminating in the way that it looks like the end game is not controlling a parameter (this site can rank for these X keywords because it only has info on these X subjects ) but rather punitive "this site cannot receive more than Y hits from us even if it's able to rank for more than X keywords".
It is probably way too naive at this point to look at what they do from the "organizing the world's information" stand point. But I cannot see any reason such complicated traffic throttling can help "organize" anything. It is definitely about controlling the resource which is traffic.