I think what they do is create a fake profile with a picture of a hot chic and try to get as many "friends" as possible.
These "friends" will be the victims of all sort of spam.
In many webmaster marketplaces, you will find offers from people who are willing to send many myspace bulletins (spam) to their friends list (which they acquired using the method described above) in exchange for some money.
you really need to understand how myspace works in order to be succesful at marketing on there, take a few minutes to sign up and use the feature, and you will get it.
People related to internet marketing earn money for telling or sending messages/advertisments about the websites, services etc. It's not that bad, if you are not doing in a spammy way.
I never tried this myspace thing but I do have a Hi5 account I know how fast I click the links that hot chics send my via PM there . I might give it a try in the future. I does have potential I think. Could bring a lot of traffic to your sties.