That doesn't sound like an answer to the question. Your product website is going to have ten thousand words of text on it, much of it on a blog talking about y

That doesn't sound like an answer to the question. Your product website is going to have ten thousand words of text on it, much of it on a blog talking about your company and the product you're building. At some point you're inevitably going to need to use the first person, and that's what this person is asking about. I use "We" for any official communication and copywriting for my products. For personal correspondence I'll often use "I", especially when talking about things I personally will be doing (ie., "I'll look into that"). For anything where more than one person is reading (site copy, forum replies, etc.,) I tend to use "We".