What does that have to do with providing a salary range for a particular job posting? That specific position created should also have a range - publish that. Normally you have to interview other candidates for this position too.
That would be making it difficult to adapt the job to fit the person.
Unless you’re some VP/Director/Distinguished Eng/C-level etc, this doesn’t happen in practice. Those jobs don’t follow normal job posting rules anyway, they’re usually sought out.
99.99% of the time, I doubt the job is ever adapted for the person. They come in with that skillset and are usually expected to grow and meet the needs of the other job areas.
So, you want the 1 in 10 000 (likely 1 in 1 000 000) hyperspecific job posting to affect the rules for the rest?