"it definitely indicates something that person has to deal with"

I don't agree. On facebook you see idealized lives of others and it can be pretty depressing. You see others going on vacation but you don't see them fighting with relatives ( ok, I see that, it just annoys me) and you can start thinking that their lives are better than yours.

I don't know if this is an accurate source, but I think this can be a problem for not so (mentally) stable people: (They could suffer from this without facebook too, but the dose on facebook is much bigger than in a close friend circle.)

http://www.uvm.edu/~pdodds/files/papers/others/2011/moreno20... - FEELING BAD ON FACEBOOK: DEPRESSION DISCLOSURES BY COLLEGE STUDENTS ON A SOCIAL NETWORKING SITE