Perhaps then it would be good to read what distinction you make between a publisher and an ISP. I think that it is a distinction that would be crucial in any legal dispute.
A publisher provides content to the public. An ISP provides an internet connection to public. The difference is similar to that between a publisher and a book shop. A book shop has nothing to do with the content, it's just a middle man. A publisher takes the content from the authors and prepares it to be read by the public (eg. parses the wikitext).