Q&A = Which subject would you like to discuss today?
Participant 1 responds: Financial report > 50 People liked this
Participant 2 responds: The new product > 30 People liked this
Participant 3 responds: Market Growth > 10 People liked this
You can clearly see that Participant 1 his response has the most votes which gives you information what people are interested in the most. In the web app this will also show as the first response on the screen (If there are more than 3 responses, for instance)