You're misinformed. Anomymity is damn easy. Add a single hop to the search engine or any other machine, and you're basically done. Remove some http headers and

You're misinformed. Anomymity is damn easy. Add a single hop to the search engine or any other machine, and you're basically done. Remove some http headers and you're free. Use Tor and you'll be a new man. As for sharing queries and clicks, everything is shared encrypted (hashes). You're sharing hashed file fragments over bittorrent ? Do the same with queries. It's a win / win situation. Your friends and peers get higlighted results and so you do. FYI Google and all broad range search engine do this in the background, on their servers to improve results. They use various machine learning algorithms and adhoc tweaks for this. Sharing queries and building a P2P collaborative filter for search is just a way to expose the mechanics, with broad benefits and flexibility for users, computer scientists and hackers.