Which server exactly? If you use a feedreader, it is not you or your browser that fetches the page, it is the feedreader itself. So a site only knows that their

Which server exactly? If you use a feedreader, it is not you or your browser that fetches the page, it is the feedreader itself. So a site only knows that their feed was fetched once from a feedreader, not who or how manye people read that feed.