[jstayton]

TrackMeNot (http://cs.nyu.edu/trackmenot/) uses this technique to protect against web search tracking.

In general, privacy by obfuscation is an idea that privacy researchers have been considering. Other than TrackMeNot, however, I haven't seen many real-world applications.

[DavideNL]

Hah, awesome add-on, you can even add your own (language) websites/rss feeds.