[flexxaeon]

I don't think they pose as applicants as much as they use the contact method (usually email) to solicit their services, even sometimes ignoring when the hiring company specifically says "please no recruiters." If they are posing, it would be pretty easy as well, as they could send in resumes & CV's of job seekers they represent.

Recruiters also pose as companies posting 'jobs', and from what I've seen when looking for gigs it's likely they solicit in the other direction as well. How low they sink, who knows.