I have not used a PTC site before.so, yeah, I have never been scammed by a PTCWell, I would not call this a scam but once my balance on a certain PTC was wiped out completely. When I sent a message, they said since I was inactive for a month, it is their rule to wipe out balance ad set it to zero. Well, they had this rule written but I was not aware about it. I gave up on that site.