Tony,
As others have said above, the content of open forums such as this is searchable and available for the public to read - not just members. This is common to the vast majority of web forums, not just this one. No privacy laws are being infringed upon as the forum does not publicly display your private details (real name, address, contacts, etc.) unless you choose to post them yourself.
I don't mean to be blunt, but if this is an issue for you then your best option is to stop posting.