The easiest if you use Google Newsgroup:simply never read anything and
NEVER EVER rely to "Human_And_Animal_Behaviou­
r_Forensic_Sciences_Resea­rch_Laboratory@Hotmail.com

If your using one of the great Free Newsgroup readers which give to
total control of what, who, when and how you read your newsgroups ya
simply click on any author you never want to see..pooooofff, they will
never be read again by accident and you can do this forever no matter
how many times he changes monikers..it will even ban the exact posting
IP address. sweet!!!