Targeting by placement and location are just proxy for user targeted ads, due to lack of better abilities. Gives you very broad targeting criteria - like San Fr

Targeting by placement and location are just proxy for user targeted ads, due to lack of better abilities. Gives you very broad targeting criteria - like San Francisco is likely to have people interested in cloud. Cosmopolitan is likely to have middle age women readers, etc. User-targeted advertising gives you much higher granularity, which makes ads campaigns more effective for advertisers. Is privacy invading targeted advertising a concern and something that needs more debate? Yes. Can it be creepy and cause harm in some cases? Yes. Should world be driven by advertisers ROI? No. Are user-targeted ads ineffective? Hell no. But also, just because something is concerning and bad for some aspects of the life (like privacy), it doesn't mean it should be wiped out of the floor, as cheaper and effective advertising does help to grow any capitalist economy. Trade-offs are needed (same as we don't ban oil, even tho it's bad for environment), and it'll become more regulated (either self-regulated by industry, or by governments), but it's not going to disappear.