i also forgot to mention that as a result of my having worked with a number of these companies it is my experience as I am sure many are aware that whilst the site states that it is not liable for the production and dissemination of any defamatory or libelous posts, as these liabilities are retained by the original posters, it is not possible to transfers one liabilities in the eyes of the law. The site has a duty of care to ensure the validity of all postings this is not an unproven are of law and cases have been successfully brought in relation to this matter, notably in the US the Craigslist suit in 2006.