As someone job hunting right now, it's so true. I'll see the same posting up for weeks and weeks.
I don't really care what work I do, as long as I can find some interest in it, so I've had a variety of jobs. There are definitely postings I look at that sound good, but the pay is lower than I had at easier jobs sometimes a decade or 2 ago. They immediately go off my list of things to apply to.
Even if 2 jobs are equal, who would want the one for less money? Sorry to say boss, sometimes it's not the people that aren't viable, it's the business.
Perpetual job postings is a strong indicator that you should avoid that company. Unfortunately most young people have to learn that for themselves first hand. It's terrible but, hey, an object lesson in how to identify terrible employers is at least one useful take away.
So true. If you can't find someone to fill a job in a month, it's probably them that's the problem. Either a bad work environment, unfair pay or expectations, unrealistic standards, something. I see my old company on there right now. There's only like 20 people in that office and years later they're still looking for at least 5 people right now. Tells me not much had changed there. The job itself was perfectly fine, but they sure made it crappy to be in that building with them.