Because that is the tone your writing conveys. If that is not your intent I would seriously reconsider your choice of words and writing style.
So you're suggesting that this post has an "angry" tone? "My take", "I wonder", "It seems like" all seem pretty passive to me. It really seems more like anything critical said about Microsoft here is considered "angry", "negative", or "presumptuous". No doubt I've gone on some rants here as many others have but the post EvilD referred to was not one of them.