Well, in the OP, it's entirely nepotism.

Fact is there's a lot of dead end postings, as far as I can tell.

Corpos post jobs so they can claim they're trying to hire someone, with zero intention of actually interviewing or hiring anyone.

It's basically a warm blanket for the current overworked and underpaid developers so that they keep working, waiting for help and relief when none is coming.

Then they have a pool of candidates when their current developers get sick of their shit and quit, so that they can fill that role immediately.

Yayyyy