There's probably ad, biz dev, and other teams and departments in media organizations that do this, not the writer.
They probably use specialized tools to scan text for keywords that have high paying ad payouts.
Fucking interesting shit honestly.
You've got: 1. ad keyword auction data 2. product pricing and product margins 3. internal business goals 4. external business relationships and deals
Gross and cool, think quant monster geeks. I'm sure some people love working on this, I wish them the best. It's nice to feel good in what you do and your life.