I think men who have not had direct dealings with UFMA and other similar agencies need to understand the full meaning of scam:
It means that the women/profiles on the site cannot be trusted because some are real, and some are not. It does not mean all the profiles and letters are false.
From personal experience I traveled to Ukraine 3 years ago after corresponding with over a hundred women for over 2 years. I managed to obtain over 30 phone numbers. When I reached Ukraine, I found only 30 -35% of the women could actually meet and knew who I was. -- even though all of them wrote they could meet me. Only 15 % were real. The rest were simply professional daters or just wanted me to spend money on them. That being said, I did find 5 real women. So the numbers are not good, but if all you want is one real woman to marry -- then, it is likely you will find her.