We can exchange and receive information in real-time; this dynamic and multiple sources’ network boosts innovation, knowledge sharing and relationships’ building.
The organisations have to embrace this revolution and their efforts are focused on (virtual) collaboration and cooperation. The results of this revolution brought also the organisations to be more open: they have opened their doors to the external world. For example, the recruiting function has been affected by this cultural change; think about LinkedIn, the meetups and Glassdoor. You can search about the company using different media and get to know better the company culture. If you want to reach out a recruiter, it is super easy.
So, why are you using Facebook? Why would you contact a recruiter via Facebook? Why would you move a contact from the professional level to the personal one? A recruiter might decide to do not answer a message. Additionally, your message might not show up because it has gone to the “spam folder”. So, I would not do it…and if you ask, the recruiters should not use Facebook to find candidates for the same reasons.