Paying to post your CV is a fantastic filtering service to provide to companies looking to hire. Resume spam is even worse than email spam. See also Local Bacon for more evidence on this approach. While they will make money from the people that post CVs, much, much more money will come from the companies that pay to search those resumes. I'm sure they set the price at wherever they expect the best filtering to be. If…
Sure, it's great for companies filtering out resume spam but how about individuals trying to avoid recruiter spam? And beside, really good engineers are never short of good offers. It's standard operating procedure in our industry that when a manager or even a dev leaves, they always try to take the best engineers from their past job with them. If it's not your first job out of school and you have to rely on throwing…
Plus, if you're resume isn't remarkable, you might have to do some crappy work to build it up. Life's rough, but if you want something, there's no better way to get it than to earn it.