You can use this logic to explain away any other ponzi scheme too.

Opening paragraph on Wikipedia explains it pretty well

RSS (RDF Site Summary or Really Simple Syndication)[2] is a web feed[3] that allows users and applications to access updates to websites in a standardized, computer-readable format. Subscribing to RSS feeds can allow a user to keep track of many different websites in a single news aggregator, which constantly monitor sites for new content, removing the need for the user to manually check them. News aggregators (or “RSS readers”) can be built into a browser, installed on a desktop computer, or installed on a mobile device.