Suppose that instead of defaming me on a newsgroup you do it on a web page. Finding it is easy–Google provides a search engine for the web too. The problem is how to answer it. I can put up a web page with my answer and hope that sufficiently interested readers will come across it, but that is all I can do. The links on your web page are put there by you, not by me–and you may be reluctant to add one to the page that proves you are lying.