There are many people on this forum (and other threads) who complain when companies pay to 'get on the whitelist'. Okay... what about ad blockers that grab / track your data and sell that to the companies whose ads they are blocking? That's way more valuable and exposes personal info far more than cookies or scripts. Before you reply, click the link on the website of a popular ad blocker and see who owns it, what info it collects, and if the source is open or closed. (FYI some of the most popular ad blockers literally are run by ad companies and it's not even a secret)