because nobody calls them out on linkjacking, as apparently it’s only linkjacking if it involves pics.
Here’s a handy pictorial guide on how to get to (and submit) the actual nonlinkjacked site. Ignore this if you are MonicaShi and are profiting from the linkjacking, and those who totally didn’t notice you linkjacked, repeatedly (someone finally noticed, but not before it got 403 points).
Hopefully this will stop. here’s some google results for stories from these three linkjacker sites, but I am pretty sure there are more in this “network” of linkjackers.