I mean, presumably it's a "bot war" because there are multiple competing parties, all using automation:

* Direct recruiters using automated tools to post job ads, filter resumes and respond to applicants.

* Third-party recruiters using automated tools to scrape job boards for openings and create duplicates

* New entrant job boards scraping popular job boards, to create simulated activity.

* Identity thieves, automatically duplicating legitimate ads to gather PII

* Applicants using LLMs to fill out application forms and write cover letters.