How does someone go about removing defamatory posts about a member of a site hosted by AWH FORUMS ?.

Despite numerous appeals to the forum owner they continue to allow highly defamatory posts about me to remain on a forum registered on AWH and treat it as a joke.

Annonymous handles do not necessarily mean a person cannot be identified. Short of engaging in a tit-for-tat game with the person who continues to defame me, I cannot see anyway of this permanent record remaining for all time if the forum host ignores my claims.

Does AWH have a means of correcting this ?..what is to stop me registering a forum that just sets out to attack people with lies ?