Please learn how to make a valid scam accusation, more informations can be found here
https://bitcointalk.org/index.php?topic=260073.0If the rest of "reports" are like this one , i wouldnt be surprised to why the user is still scamming.
In the end, u must know that he wont be banned, but his trust will be flagged red, and noone is doing bussiness with such users, thus, their scam attempts are handicapped.
cheers