The proposed binary thinking option is users will be detrimentally manipulated and exploited as an advertising product where the manipulation is sometimes intense enough to exacerbate mental illnesses, whereas the binary alternative of deleting everything and going Unibomber will result in extreme social and job related ostracism because obviously "he's trying to hide something".
There are analog middle options that are just as valid as the polarizing binary extremes. I have a perfectly good FB account with plenty of connections, but I only log in every couple months. A little awkward when someone wishes me happy birthday and I don't see it until four months later, but whatever. Most of the time stuff that was posted six months ago is irrelevant today, and likewise I feel pretty safe ignoring most of what was posted today. I find that on FB, as with any other online media, that there's at least 10 to 100 times as much lurking as posting, so there's really not that much to read anyway. For example my best old work friend is about as much of a lurker as I am, so there's really nothing to see.
Or to summarize, the negative effects of deleting your account have nothing to do with the result of "stop using facebook", if you simply stop using it and do not delete your account.