They probably have this data. But the data is most definitely heavily polluted: Fake job listings, jobs posted to several sites, sites that aggregate job listings etc. This data is probably more polluted by AI then AI has influenced job openings itself.

OP here. You're right to be skeptical, there's an API here if you want to see a sample of the data: https://docs.bloomberry.com/reference/get_signals-jobs-json#...