The problem is they likely have algorithm driven criteria for assessing ads. The things that alert us mean nothing to those algorithms. For example, you have the same SC 430 ad posted in about 4 or 5 different locations within the UK. Same price, same reg etc. However, when you report it they come back and report they are not going to cancel the ad as it does not breach their criteria. In that case all you can do is block the profile ( which means little as the scammers obviously have has many different profiles as they want), and of course hide the ad., but it will keep popping up under it's many aliases. Facebook probably will not get serious about scammers until someone decides that by law they are liable for any fraudulent losses incurred via their platform. Nothing motivates like seeing your bottomline diminishing.