[skoocda]

If someone was running a supermarket and you came in day after day and never paid for anything, they'd get suspicious and probably follow you around all the time, too.

You don't pay for (almost) anything on the internet. Nobody does, because the requisite infrastructure doesn't even exist to allow you to pay for a page at a time. Until that changes, the creepy companies will keep finding ways to follow you around- both to earn money from advertising, and to ensure you're not abusing their systems.