Moderation is useful for Q&A or open-response polls. Without moderation, any audience member or student can respond however they like. Everything appears on screen, in real time – even embarrassing or off-topic responses. With moderation, the presenter sees every response before it appears onscreen, and can give a quick approval before the response goes live.
This feature pairs with the Poll Everywhere mobile app. That means you can use your smartphone or web-enabled device to approve messages, while your laptop displays the live poll. (This is particularly convenient when you only have one laptop, rather than two laptops and an A/V switching device.)