Goodbye FLoC, hello Topics

The problem with this reasoning is that the number of ads shown is not determined by a target amount of money made. Instead, the number of ads is increased until they become obnoxious enough that users stop visiting the site and ad income begins to drop. Whether the obnoxiousness comes from the number of ads or their irrelevancy does not matter.

Also, there are people (me included) who actually prefer to see irrelevant ads, because they are easier to mentally ignore and less able to manipulate you.