Is that related to re-selling personal, intimate data (like where you are and what you like) to third parties? If not, why mention it in the context of privacy

Is that related to re-selling personal, intimate data (like where you are and what you like) to third parties? If not, why mention it in the context of privacy? I'm not an Apple user and I don't even think the iPhone UI is particularly great (no . and ? keys on the keyboard? No notification drop-down I can quickly, in one-stop-shop fashion, remove notifications without that silly number on the icon remaining?). But we're talking about privacy.