yes settings are a huge part of this, which is why I did mention this in my post.

checking settings frequently and making sure they are the way you want them does sometimes work but there are rare situations where facebook has admitted to making changes to their site with out notifying members. these changes sometimes mess up the settings or allows what we dont want seen to be seen no matter why you are on facebook or your profession or lack there of, or student or lack there of...

theres also the situaiton where for example facebook is search able with google, safari and others. if it wasnt you would not see selections ingoogle searches and images that lead you to treatment providers to begin with.

I frequently post generic memes and non personal info pics(flowers, lakes.....) I had my facebook settings at only friends then discovered by goggling a favorite flower, then clicking on images and theres my personally decorated one of a kind (because I made and painted it) flower pot with the flower I painted on it. when I clicked into that image (google images shows the picture then above it is the link where that image comes from ) I clicked on the image link above the pic and it took me to my facebook page photo from there I could with out logging in and with a generic computer was able to continue looking at all my albums in my facebook account. I did notify facebook that this happened. I got the generic thants for reporting notification, then a generic apology stating their policy pages were very clear that google does have access to facebook and to not place anything we do not want others to see. then they told me how to review my facebook of everything I had posted since registering so that I could remove anything I did not want google to have access to.)

my point ideally and in a utopian world yea settings should work but heads up it doesnt always.