You should write a section in your eBook that is called: "You know he is a scammer when " Credits to Jeff Foxworthy
Like:
You know he is a scammer when he posts dumb responses to about 20 threads that have been inactive for 4 years to increase activity.
You know he is a scammer (or a magician) when all of his (fake) vouches are posted in his locked threads.
You get the idea. I'm sure you can find some more. Maybe we can get you a Pulitzer Prize.
You know he's a scammer when he thinks he's going to sell $1000 in cash for $250 in bitcoin.