All this talk about how creepy Facebook is and yet most people use it? If Facebook was that creepy it wouldn't be a trillion dollar company. So they saw a "creepy" ad. They went "haha" or whatever and then kept using it. I mean how would you even quantify that the feature was "poorly thought out" or "slimy" at that point? If that was the case why didn't the user log off and never come back? Then at least Facebook would have a signal to work with.

Sometimes people really miss the forest for the trees. Most people actually like Facebook. If you can't wrap your head around that you have to accept you are distinct from the typical consumer. A trillion dollars is not made by appealing to the margins. If Facebook really sucked so bad everyone would log off.

Instead of another boring Facebook sucks comment why don't you ask your sibling why they didn't stop interacting with the website after that? You would probably learn more about the world doing that than trying to speculate about marketing tool features at a company you don't work for.