RSS is the most important web 2.0 tool because it respects your privacy. When you pull information from another user – they know much less about you than when you read it on their website. They can’t set cookies.
When you read at a distance through RSS, at your convenience, your information isn’t given to the server you’re reading it on via cookie – no time or date stamp, no location rough estimate via IP, no browser information, no information about whether your using a mobile device or not – in fact most of that is irrelevant. It’s about the content of your post. You can choose to interact by posting a comment, which then can give the owner of the feed a bit of information should they want to.
It’s like standing in the square, yelling into a megaphone, announcing some great feat. Some will just listen, some may yell back in opposition, some will walk away. This is how the web should work.