Scams are ubiquitous.
If the person does not want to talk over the phone or wants you to pay them be weary.
Craigslist is known for having quite a few scams but that doesn't mean there are not good projects on there. Even sites who have made a name for themselves, like BackStage and Mandy have scams.
If someone contacts you letting you know they love your look and they want you to come in for a meeting, thats a red flag.
Usually after that meeting, they will convince you that you will be a star but they need you to either pay them, or pay for photos with their photographer.
You should never pay to be a part of a project, an agency, or a management company. You should not pay anyone to represent you. They find you auditions and when you book something, they will receive a percentage.