There are much more deceptive scams, in the job search business, with Intellius and even the EDD. The ones on CL are easier to spot.
If you are an employer, and you put stuff on CL you will get a lot of fake hits.
But the "more respected" sites like an Intellius (and many others) ask for personal information and it's places like this when I and friends and family have had my identity stolen and charges rung up. It finally took Wells Fargo Identity Theft to clear up the Intellius debacle with me.
The HR staffing field has taken too much to stealing people's info for their own purposes and charging up your credit card for "fees" and "memberships" and when they get slapped with class action by those fees or people who have their entire life savings emptied, then it's just a small cost of doing business. CL may have scams and more of them but the more dangerous ones go for your personal information where they can really stick it to you.