Thank you for linking this. English is a second language to me, and reading that list i found i've been following those rules a lot and have been getting grumpy about people who didn't and made it difficult to understand them. Now i can point those people at that essay.
Right..... So you're saying that your code works? Like, it doesn't crash? That's... awesome...
Buzzword bingo does not add value. It only obscures meaning. Of course your code works. Of course you use existing technologies. That work. In existing code. That you leveraged. Using techniques. And technologies.
He was saying many other people have contributed java libraries his programs can use, so that he doesn't have to hire an expert in HTTP, or computational geometry, or many problem domains that aren't the direct concern of his application, yet are necessary for it to work.
He said it in a compact way. It's a form of compression.
"Leverage proven techniques and technologies"? What does that even mean?