I've been talking to a lot of people lately about creating and organizing their content for various purposes and places. In the process of conducting a recent lunch and learn on the subject, I collected lots of tips and ideas and here's a good one.
This doesn't have to be about claiming someone else is wrong. (I chose the subject line for its alliteration.) It can also be about agreeing with them and offering more info or expanding on the subject.
Of course you have to keep up with your reading and research in order for this strategy to work. Current is key.