FeedBurner only modifies your feed to the extent that the services you choose from our catalog require. We strongly believe publishers should retain creative and technical control over their work and that our services should only apply when chosen. FeedBurner does not sneak advertising into feed items or modify hyperlinks without your consent; if you see advertisements at the bottom of feed items, it means you (or the publisher whose FeedBurner feed you’re viewing) has chosen to run them in their feed and is sharing the revenue. Also, our Item Stats service provides detailed clickthrough statistics by modifying links in your feed that point back to the original source. Again, these modifications only occur if you have chosen them and can be immediately reversed by deactivating the service.