Unless OP will offer all the details here, thus anyone can read them and analyze if this is a scam or not, I strongly advise all members to stay away of such unrealistic offers. There is no such thing as free money and most of these attempts are just scams. By choosing to offer details only via PM is a strong sign of scam. If there is nothing to hide, why not post all the info here, in plain sight?

Furthermore: if OP can get 600$ per month "without any work", why did he create this topic instead of getting rich? From a good samaritan spirit? I doubt.

This advice is mostly for new members, which can be trapped easily, as old members usualy know about such techniques. However, if any old member is tempted to try OP's offer, I suggest to be very cautios. OP is a member since today and there is no reason for believing his statements.