Except that scambaiting can be dangerous. See 419eater.com for years' worth of entertainment.
The one time I played with a scammer I ended up creating my own personal hell. I told him yeah, sure, I was 93 year old Mildred. Yeah, sure, my hips and knees ached, but only because I was training for my third run up Everest and not because I needed a deal on durable medical assistive devices covered by Medicare.
Next thing I know, my number is listed under the real Mildred's name and if I could just sell the house flippers quitclaim deeds to a house I've never laid eyes on, I'd be rich.