User agrees not to use nicknames that might be deemed abusive, vulgar, hateful, harassing, obscene, profane, sexually oriented, threatening, invasive of a person's privacy, or otherwise inappropriate. User agrees not to use nicknames that might mislead other Users. This includes but is not limited to using nicknames that impersonate developers, staff, or other Users, or other individuals outside of TGP.
Read the USER AGREEMENT/RULES OF CONDUCT/TERMS OF SERVICE/USENET NEWSGROUPS
btw ... you all agreed to this when you registered.