Debt collectors appear to be using Facebook to get info on the people their pursuing:
The attorney in the video is Jonathan Stein. He's a personal injury lawyer out in Elk Grove, CA. He's also the author of Litigating MIST Cases. The MIST Book is a step by step guide to fighting insurance companies in what they've termed "Minor Impact Soft Tissue" (MIST) cases.
One Elk Grove mother says she was scammed by a debt collector who claimed to be a college student looking for advice on her town. She accepted him as a 'friend' on her Facebook page even though they had never met.