[DJHenk]

I tried something like this with the LinkedIn timeline, where they suggest a popular post from a stranger "Because you are interested in topic X". You can indicate that you are, in fact, not interested in topic X and tailor your timeline that way.

But the next day they will show you something "Because you are interested in Topic Y". Where Y is very closely related to X.

I religiously indicated I didn't want to see X, Y or whatever, because I am just not interested in posts from strangers at all. It took two weeks. Then apparently they ran out of topics for me and started right back at the beginning and showed me something for X.