As commenter Seattle Peach points out, "Poster Giant can't exist without their clients." So if those posters really are for/connected to PAX Prime, as other commenters and bloggers have noted, I wonder what PAX thinks of the Poster Giant controversy? PAX has a reputation for being a relatively safe/lady-friendly nerd con, due to its anti-booth-babes stance and for having a decent anti-sexual-harassment policy (and apparently decent enforcement of both). Although, they did get taken to school last year over a but-I-though-our-rape-joke-was-hilarious situation (just google "dickwolves" for more info). So... I wonder if they'd mind that they're now maybe part of the current poster wall brouhaha? I have some e-mails out to see if I can get an answer.
UPDATE: The posters are for Hawken, a game by Adhesive Games, who have a booth at PAX Prime, which they direct you to on their poster. But the posters don't seem sponsored in any way by PAX itself. Poster Wall War 2012 continues. PAX's involvement = pretty dang nonexistent.