I personally think the current word processor paradigm, and the resulting underlying technology, performs badly UX-wise: many of the formatting options don’t have any semantics at all, and have to be applied manually. What’s the semantic difference between bold and italic text? Why are both options exposed at all? The current state-of-the-art apps are full of quirks like this, and I think it’s time to challenge the decades-old workflow that has lead us to this.