I think there's a Stryker thread where some of the sock puppets (of sorts) have made an appearance this week. SPs are manufacturer reps who slink onto a site using some average Joe persona and try to develop buzz about their products.
Like, "Hey, I just bought the Fire Lizard's newest Uberpanzer Ausf. E Genius Kit! What a great model, it is the most accurate version of the Uberpanzer to date, you gotta get one!"