Nick Bradbury brought up the problem of RSS readers that are checking in too often and using up valuable bandwidth. So here is my clever idea that I don’t know how to implement just yet. RSS feeds are almost all dynamically generated (who would code that by hand with every update?). If you know the IPs that are causing problems you should be able to append a notice to only those feeds that politely tells them that they are checking for updates too often, why it is a problem, and how to correct it. In many cases this may just be a case of people not understanding that there is a problem at all or how to fix it.