You're wrong.. ATA has never once said it supports scammers. Players can make false accusations of scamming as well just to defame another player.
Ata might as well support scammers by not doing anything about them. As it stands all they're doing is creating more scammers. I've seen people I had successfully traded with in the past now scamming others because hey why be an honest trader if you can get more outta scamming and not be punished