I now view suggestions or recommendations by FB or YT as representing what the site thinks of me. And then I ponder where it got that particular idea. Now and then I'll roll my eyes or get offended.
Yeah, that's the thing, really, like all stalking it makes one a bit paranoid, or at least constantly wondering what's going on here. What it _doesn't_ do, ever, is persuade me to click on an ad.
I was thinking, if it were, say, an ad for an appealing-looking food item that I could buy at my local supermarket, it could, concievably, get me to seek it out on my next grocery shop. Or a reminder that some band I already like has a new album out might inspire me to go to some site I already trust and buy it.
But there's no way I'm going to click an ad just because it arbitrarily tells me they know how old I am or where my phone exchange is or because it's selling something they, entirely-incorrectly, think somehow relates to a site I recently visited. It just doesn't work, so they ought to stop doing it.