They wouldn't. If anything, they'd go up since people would have to actually use their brains and set up real targeted marketing (even ads) instead of the curre

They wouldn't. If anything, they'd go up since people would have to actually use their brains and set up real targeted marketing (even ads) instead of the current "show 20 ads, rake the CPM cash and hope we get some leads, too, YOLO". There was a short period where it seemed like it would happen - context aware ads, links and affiliate products, each page was served different ads or none at all, with no privacy stuff it could also be very effetive. Alas general ads won, and they do make more money for the platforms since they can show the same ads for stuff you have already bought/installed.