Ask yourself a question. This "woman" is in the world wide web. Do you think you're the only one who responded? The agencies make money with responses. They will make more, if they get you to get accommodations through them.
Of all the men who respond, not too many will visit. You maybe the only one, if you go. That doesn't stop her correspondence with the other men.
According to Elena of Elena's models, of every 8 men who say they will visit, one will.
The letters might sound serious, but once you get there, you are at square one. You may snag a girlfriend, but forget the letters. Russian, Ukrainian or other women will require some time to get to know you before she commits.
I am one of the one in eight, or one in twenty, who visited various woman over the past ten years. I live in Califoria. I can tell you, from a lot of experience: these FSU are indeed beautiful, but many have serious emotional problems, are looking for money, and can scam you as well. Often the woman you meet will be much different than the one you were writing to. "Ghost writing" is common at some pay per letter sites. Some men get lucky and find lasting love in the FSU; others, heartache. Caveat emptor
Besides what I already said, I think it depends on what you call a scammer. I guess one who is not serious about a relationship would fall into that. They all want money, and will lie to some degree to get it from you. So, make sure you are in control of your money.
As far as fiance.com, it is probably better than most. I have heard of scam sites where they pay women to go on sites. I haven't heard that about fiance.com.
When you are out with her, beware of department stores. They will stop, and expect you to pay. I once asked the woman I was staying with if she had a microwave. Soon, we were in a store and she was looking at microwaves. I once wanted to work on the computer. Nope, the woman I was with didn't have one. The next day, we stopped at the computer store.
I have been here in Fiance.con for few years, but not always active. One thing that I have always found strange, women that I was lokking at or corresponding for a while tend to dissapear, when I look up the profile then comes incorrect id and profile has dissapear.. maybe they all got married or found sombody special... but always found that odd compsred to other sites.