It means: try to get companies that otherwise would not go for Microsoft products to give it a try through free product samples, and talking down companies not microsoft.

I really wished that companies like Microsoft, Google and so on would not have a 'HN guy' (and would not have non-disclosed HN guys either, Felix is at least above board on that), it can make it a lot harder to figure out what is a genuine user experience and what is product placement.

Unless the Microsoft stack is something you already have experience with you're much better off using non-proprietary stack software. Anything coming out of Microsoft will sooner or later cause a bunch of licenses to be sold somewhere down the line or monthly invoices for metered usage to appear so make sure you know exactly what you're getting into. $50K in freebies will have to translate into $50K more profit somewhere along the line.