Wish you luck on this, but I don't see it helping a lot of candidates. There's a large number of (and will always be a large number of) "ambulance chaser" boiler room recruiters working in a very large English-speaking country that shall remain nameless, and they'll often cold call me up for the same certain roles (that don't pay well) as the last one 5 minutes prior.
I could write a whole book of these stories (as I'm sure many others reading this post could as well) but I'll recount one of my favorites.
I had interviewed with Abbott Diabetes Care in Alameda, CA, and gotten a job offer, but went with a different opportunity. Fine.
Recruiters would still blow up my inbox and phone with that role for months to come. And being employed, I was getting really short with them. Like, say "not interested" in half a second, hang up in a second, super-rude short. The trouble was it took 3 minutes squeezing the details about the job out of the person before I could get there.
One recruiter with a very thick accent was being exceptionally coy with the details after he cold-called me. The role was in "California", and then once pressed he said, "Alameda, California". Alameda's not all that big, and it's a bedroom community more so than most Bay Area cities, with the exception of a couple business parks next to the airport, where Abbott is.
I asked, "is this with Abbott?" "No, no, no.."
"Ok, who is it with? What's the company's name?"
It's with.. (shuffling of papers).. "uh-BOT".
"That's Abbott.. Dumb ass."
40+ years old and I'd never called anyone dumbass on the phone before.