% sudo dpkg --list |grep -E "lens|scope" | awk '{print $2}' | xargs sudo apt-get remove

It's actually 50% easier than you thought. Now its so easy my dog can do it.

If Canonical really wanted to press the issue, they could easily make unity-lens-shopping a dependency of unity. sudo apt-get remove unity-lens-shopping package would create a dependency problem that the package manager would resolve by either keeping it installed or removing all of unity. Many non technical users wouldn't even know how to get rid of the ads, thus they will stick around by default. An ethical approach to this would have been prompting during the upgrade or the install whether or not to enable them. Even some windows programs bundled with crapware at least give you the clear option to opt out before the installation. If I didn't read this thread on slashdot, I would have no idea what the offending package name would have been. I would search first for the terms "amazon", "ads", "banner", "adware", "sponsor", the word "shopping" would have been quite a bit farther down on my list. If this is the future of the linux desktop, I don't want it.

Its that most of these films were released after IMDB was created. When people see a new movie they actively want to share their opinion of that particular film with the rest of the world. With old movies people are more likely go go "Meh. History already judged it." This is especially true when old movies are cheap and new movies in theaters are expensive. The second factor is how many positive reviews for films are given by the younger people who will give movies like Transformers 10/10, but have never seen better movies like Terminator 2 and the Abyss.