Well, if we're being truthful, none of us use REST. We're all just cherry-picking the parts of it that work for our organizations... and that's absolutely fine. The programtic discoverability portion of REST always struck me as pretty poorly thought-out anyways.
I think you missed the point. You 100% use it every day. You’re using it on this website right now. Your web browser shows you what actions you’re able to take against the HN api. Neat, huh?