If you are a Linux distributor, you have a number of possible ways to upset your user base. Breaking existing, well-established functionality is one of them. Another would be to install software which appears to be monitoring user activity behind their backs. Seeming to make money off of these activities will not help. Extra points are awarded for doing it all as a surprise. Ubuntu has risked all of the above with the "multisearch" Firefox extension included in the current "Karmic Koala" alpha release.