Would you pay $30/m to move your resume to top of applicant list?

Maybe, but if I was hiring, why would I use a service that allowed an applicant to do that (unless I can easily identify and disregard the applicants that are placed by payment rather than qualification)? I mean, if it was a fee to move their application to the top of the list for a particular opening, it might be vaguely useful as a screen for motivation or interest level, but paying $30/month to make themselves a "featured applicant" for all applications means that, as a hiring party, the system just became less useful for me. And if hiring parties stop using it (or continue to use it because they can easily disregard the out-of-order listings), the paid premium service isn't useful for job seekers.

I've not used the LinkedIn job boards, but the rest of the article implies that the rest of the list is sorted with the "most qualified" at the top. If the second part of the above quote is true, I'd be skipping straight past the "featured applicants" to the ones who are there because they have the best qualifications.