I've been using #AdNauseam for a few months now on the promise that feeding garbage data into my ad profile would protect my privacy. Interestingly, while there's been a few outliers, the portrait is still plausibly true to my interests. I think I get even more ads for things I'd be likely to buy than before I started. I plan to keep using it, since I still have high hopes for what it's at least trying to accomplish, but I'm not sure it's done anything for me besides waste bandwidth so far