Informed decisions require some key information alongside sentiment or opinion collection.
Here's a great article about trends in data collection and why it's important to marketing.
This article indicates the top four items are:
Demographics - age, sex
This is exactly the information we focus on collecting at townhall app (although Name is optionally provided by the participants).
Once the participant has added their information once, they never need to do it again - even if they are answering townhall questions from another organization.
Email addresses are not shared with our consulting organizations and registered users can change their settings to not receive any notifications from townhall.