Stuff like this just creep me out. I do have an account on Facebook (required for viewing certain albums etc.), but each and every privacy/marketing issue with FB that pops up really deters me and pushes me one step closer to erasing the account.
As has already been noted by people in this thread, FB users really seem to just "tune out" and not notice the ads. My observation is that the people making that observation also "tune out" and don't notice the really scary privacy issue at hand :)