It's really not, and there's no evidence of it. There are tight privacy controls which allows you to determine what people can see.
Even as it is, these are items which the user has chosen to 'like', something that is shared with friends (and optionally everyone, depending on your privacy settings). I don't like how users names can be put at the top of sponsored posts, but at no point are users being misrepresented, or is their privacy at risk, unless they have not configured their privacy settings correctly.
Even as it is, these are items which the user has chosen to 'like', something that is shared with friends (and optionally everyone, depending on your privacy settings). I don't like how users names can be put at the top of sponsored posts, but at no point are users being misrepresented, or is their privacy at risk, unless they have not configured their privacy settings correctly.