Re: Tracking will still happen
Yep, this is strangely not illegal. Amazon makes this prevalent with the fact they keep showing the same guesstimated ads when you have never logged into Amazon on a machine, and see the same ad on another machine you've never logged into. Amazon, Facebook and Google are notorious at invading privacy, but even smaller sites of similar kin do it (there was 3 I noticed it on, but I'm not disclosing them).
It also might be worth pointing out the sites that "save a draft" of some sort, as this is a great excuse to retain user data under the guise of functionality (I'm now VERY paranoid of these sites).