I find huge value in using these as a blacklist - this won't protect against a zero-day or unknown malware, but it will absolutely protect against the known, re

I find huge value in using these as a blacklist - this won't protect against a zero-day or unknown malware, but it will absolutely protect against the known, repeat offenders. Having all Facebook and Google domains & IPs blacklisted will already do wonders for your privacy. You can whitelist the browser if you need to access such services while making sure trackers in other apps still can't talk to them.