i won't deny that mom and dad aren't going to care about the difference, a la penny arcade, but, from the ESRB: "Online-enabled games carry the notice "Online

i won't deny that mom and dad aren't going to care about the difference, a la penny arcade, but, from the ESRB: "Online-enabled games carry the notice "Online Interactions Not Rated by the ESRB." This notice warns those who intend to play the game online about possible exposure to chat (text, audio, video) or other types of user-generated content (e.g., maps, skins) that have not been considered in the ESRB rating assignment." has any game "lost" its rating, or had it modified, or whatever, because of user generated content?