Start-up idea I don't want to do, but would pay for money for: Applicant Tracking System, but for applicants. Employers pay for posting per usual, but applicants also pay $N/mo. An applicant can submit a small number of applications per week, but get information of where their application is in the process, including if they've been passed over. Employers are forced to use some sort of tiered system for progressing applicants through the process, or won't be allowed on the platform, and same with "posting a role just to see who applies".

Really, it just monetizes some equalization of the power/information assymmetry between applicant and employer. I know I would have paid easily over $100/mo during my last job search to know wtf was happening with each of my applications, even if it was just getting turned down. The black hole is such a waste of resources.

Or, at least, something like that.