Here is a tricky one to answer. Sure, I guess you could say that this mysterious poster posting Circuit City ads is giving up some inside secrets or something by publishing Circuit City ads early, but really, what's the harm? People are going to read them days later anyways, and I don't think other companies are basing their prices around what they see in these published ads early.

From the article:

The latest CAGcast brings word that electronics retailer Circuit City has served CAG Productions with a subpoena. CAG Productions is responsible for popular video game shopping community CheapAssGamer.com, which has 100,000 registered members. The retail giant wants CAG to turn over all personal information about registered forum member Speedy1961, who has been posting weekly CC ads prior to their release on the site. Speedy has also posted them on DVDtalk.com, and that site appears to have received legal action as well. The subpoena mentions one CheapAssGamer thread in particular, which prior to E3, revealed that the PS3 would get a price drop. That same thread also included pricing for games at Circuit City as well as game prices at Target and Best Buy.

Read the full article over at kotaku.com