[cedricd]

Yeah, this advice looks targeted to companies that benefit hugely from targeting their users.

If I'm reading correctly it's basically saying 'once a user has identified themselves to you, then you can go back and figure out the steps they took before that'

As a person, if a company knows what I did right before I bought their product (say in that session) I think I'm ok with that. If they follow me onto other websites or other devices then that feels a lot more invasive.