You really think that the FTC doesn't have better things to do than to shut down a 6 person yahoo newsgroup? I know that's a coup in the making and y'all are probably big and mean but come one. More plausible that someone is just making up the email for more publicity.
"Dear 6 people on Yahoo newsgroup, please stop talking bad about us. How would you feel if we talked bad about you? You are hurting our feelings. Love, FTC"