A lot of job postings are fake (position doesn't exist, position is exclusively for an internal hire only, job posting just for marketing purposes, job intentionally way underpays to justify hire a H1B, etc)
If you simply count job openings, you'll overestimate actual available work by a really large margin.
This is true. For some reason at my company, if you want to do an internal transfer, for the transfer to go through, manager has to post it to job board, and then you apply like a regular person, and then it goes through. This takes a few days, while it sits out there on the internet, luring everyone in pointlessly.
Also...someone applied to a product manager position at my girlfriend's job. They were well qualified. A week later they get an email saying "hey you aren't being considered as we're going to focus on other candidates but we'll keep your resume on file." Turns out...they had cancelled the position about three weeks before, basically forgot to take it down, and then sent out the same standard rejection letter to everybody. And I should mention this company is one of the larger Internet job boards, so even more ironic.
Also I get how not following up or "ghosting" maybe happens in dating, but there needs to be a higher standard in recruiting. With all the waiting and guessing, we're causing a lot of friction in the economy. Indeed Prime has this thing where if you don't explicitly respond to a message within 72 hours I think, they suspend your account for a week. Stuff like that could help out.
If you simply count job openings, you'll overestimate actual available work by a really large margin.