I think you missed the point. The point is that although it's technically very easy to 'highlight some job postings on the list, that simple upsell can generate

I think you missed the point. The point is that although it's technically very easy to 'highlight some job postings on the list, that simple upsell can generate hundreds of dollars a month. This was not intended to be a literal guide on how to make $800 in 3 lines of code.