[netwanderer3]

The only effective way, that I know of, to prevent someone to build a profile on you is by throwing a lot of useless data to confuse them. Blocking their access is not effective because they have multiple ways to get to you, especially when you're just part of a bigger target market. These conventional methods like VPN are simply too easy for them with million of other people also using it.

If you're constantly throwing useless data at them, adding irrelevant URLs or browsing patterns to the data stream then their system will be confused and unable to paint an accurate picture of your profile.

This is borrowed from a similar strategy used by professionals who have gone off-grid and wanted to avoid being tracked. They would pay multiple other people to use their credit/debit cards at various different locations around the world so the system tracking them would be confused and could not pin point their exact current location.