> I disagree. Giving fake info adds noise to the mechanism, makes it useless.

There's no such thing as useless info. Companies will sell it, buy it, and act on it regardless of how true it is. Nobody cares if the data is accurate. Nobody is checking to see if it is. Filling your dossier with false information about yourself won't stop companies from using that data. It can still cost you a job. It can still be used as justification to increase what companies charge you. It can still influence which policies they apply to you or what services they offer/deny you. It can still get you arrested or investigated by police. It can still get you targeted by scammers or extremists.

Any and all of the data you give them will eventually be used against you somehow, no matter how false or misleading it is. Stuffing your dossier with more data does nothing but hand them more ammo to hit you with.