I’m pretty ignorant of the marketing industry, but it seems like maybe you’re lumping demographic targeting in with personalization - broad categories like age,

I’m pretty ignorant of the marketing industry, but it seems like maybe you’re lumping demographic targeting in with personalization - broad categories like age, geographic location and gender are probably good ways to target advertising. Hyper-individualized ads are just plain creepy. I’m glad to hear they’re generally ineffective at reaching their intended audience, and I’d hope that when they are effective, that the sense of invasion people feel causes them to turn the other way.