It occurred to me that if you want to see fewer ads and be generally left alone by marketers, get your IP and online data footprint associated with pariah topics like fringe news sites, weird subcultures, edgy politics, drug use, and privacy.
Basically like being a hacker in the 1980s and 90s, or even part of early rave culture, where the sort of people who work in marketing would be afraid or uncomfortable with being associated with you before the culture is gentrified by people preoccupied by their reputations, and you can be free to create and innovate without being co-opted.
No doubt they still have a category for you, but it's marked as a minefield, which is as good a moat as any.