Thought experiment: does applying a "price" to applying to a position make sense? Legitimate & qualified applicants get lost in the noise because unqualified candidates send hundreds of resumes on sites like Monster and Craigslist.
While this would open up possible fraud with disingenuous job postings with no intent of being filled, would something like charging $1 to apply to a position improve the situation? After all, this is the approach that Universities take when accepting applicants.