And if not, get a plugin that purges them every 10min-1hour and another that alters device identifiers. Sites think they have a unique visitor every so many minutes/hours.

Chameleon is useful but some sites break since they cannot verify a real ID.

Also, aggressive anti-fingerprinting should be used.

Why avoid giving data when poisoning it is more effective?

(If you want to really bully data companies there is a plugin that "clicks" every ad so the company pays while blocking it for you. Ad Nauseum)