@Intrepid,
Amazon.com's discussion forum gives you the ability to click on "Ignore" so you can ignore a particular person. When you click on 'ignore' you will not receive any notification emails re: the 'ignored person' and when you open a thread it will tell you that you are ignoring this person without making the posting available for you to read.
It also gives you the ability to selectively open and read a 'hidden' posting from the 'ignored person' and see if they have pulled their head out so you can determine if you want continue communicating with them.
The best thing about it is that the 'ignored person' and everybody else can still post for those people who haven't clicked "ignore" without having to 'report' him.
Might I suggest that if you consider this to a good idea that you copy and paste everything above this last sentence into a2k's "Suggestion Box"?