The idea is that, if you search for it with determination, it becomes legally something completely different than if you stumble upon it "accidentally" while doing a "standard google search of the new job candidate"
A lot of employers started testing the "anonymous job application": They only get a UUID, your qualifications and CV, and only after they decided if they want to hire you or not the employer actually gets the name, age, gender, etc.
VW, for example, is taking part in this. Also makes sure that no one can complain about ageism/sexism/racism/transphobia/otherkinphobia/etc
Mostly: There are cases where some types of background checks are legal.
It won't be hard to bury a 6 year old photo of a random person shitting on the beach under all the new content.