The point is you should be putting out different job postings when you are looking for different personas.

I'm not answering a pitch that says "$100K-$350K salary, final decision based on vibes" but I will if it says "$250K-$270K salary, needs 10 years of experience leading X kinds of projects and proficiency in Y, Z".

Posting a job ad isn't the onerous part of the process though to be fair.

It does make me wonder what would happen if you put out 100 different job adverts split apart by £1,000 increments. I'm sorry you aren't suitable for the 100k job you applied for but would you consider our 97k role instead?

Maybe you should, one for each expected level, with a description of the expected qualifications of each and how much you’ll pay for those qualifications? Sort of an “if X, then Y, but if also Z, then W” thing? Like a company should?