Clever pivot! I was recently thinking it would be useful to track job posts that have been open for a long time. This could be a sign that the company is struggling to make a hire. As a freelance developer, that suggests they may be open to a cold call offer for a contract until they can fill the role. The hiring manager may be more receptive since the seat has been vacant for a while, and they can end the contract when the role is finally filled.

Is that something you can build on top of your dataset?