The fact that mod's don't ban scamers makes them useless.
As for the proof here's a screen shot of the payment. http://postimg.org/image/pmctfn76r/ the who.is for the http://who.is/whois/http://toxcoin.com the site was created on December 30 2014, which should have been a red flag. I don't know if I want to take the time to completely find out who he is,
It is simple : the staff doesn't involve in any "scam accusation" they are not judges and this is a forum not a law court. If it seems a scam doesn't sign up, you should no trust no one.