Trying to list every "scammer", "fraud", etc is mostly a futile effort - not saying it won't help, but overall it's of very limited value.

Trying to list all "scammers" is like playing whack-a-mole ... knock one down and two more pop-up. There is no solution other than changing the whole model...

Discouraging mail order is a better approach and instead focus on establishing networks of local people to help others in their respective local areas...

Local connections face to face / local private courier, etc greatly reduces the odds of one being scammed, local providers can operate legally (or at least tolerated) in many areas (MOM on the other hand is asking for trouble all around), and local provider assistance networks scales-up well ... ie. a 1000 local people can serve far more people than a few dozen MOMs ever could hope to.

In a nutshell, it would be more productive to build local networks of people who can help others locally.

Ron