Has been

Very independent.

It walks, sounds, smells and looks like a bullshit. I wonder what could it be?

It don’t. Mostly becouse it don’t have to. Your online behavior is easier accessible and a better predictor… (pretty bad over-all, but still better. Digital Marketing Bubble is bursting!)

Gold.

Proton Pass has a feature exactly for that. You can create unlimited number of aliases, and kill ones that bacame compromised.