Yes. Uh, somewhat. The general consensus so far is that it's okay to use capital letters or italics, as long as they're used sparingly, in that they don't lose their effect with the frequent use.
As a reader, I don't really mind them, and they do enhance my "reading experience". But I found that if I do the same thing when I write, I'm unsure whether I should, because as I have said, it looks awkward to me.