Parent: "There's nothing wrong with promoting your business in a blog post --- why else write one?" You: "why else write one? -- To provide helpful informative

Parent: "There's nothing wrong with promoting your business in a blog post --- why else write one?" You: "why else write one? -- To provide helpful informative information" And to promote yourself of course. Which is good for business. Even if that is not your intention. While many people prefer to comment anonymously on HN anecdotally I'm not aware of many bloggers that blog that way. (Even Fake Steve Jobs came out of the closet eventually).