Réponse:
I would look for them,once I found this desperate person I would befriend them ask them what's wrong (if not, specified in the paper) I would offer my help,ask them why they left that message overthere, make sure they are not suffering from anything (no injuries, mental illness) even abuse from a parent, a spouse, a sibling, a kidnapper (anyone in their life really) anything to alert the authorities.
all while being very careful and cautious because I don't know this person , it could be a trap to lure in innocent and good people.
thank you for asking ,I would genuinely do this,
*btw I did write this all from the heart lol*
Malak