Nowadays when we deploy Polis, it’s true that we do ask for some sort of ID. At this moment, we ask for an SMS number that we confirm that this SMS exists. But that’s it. So, if you have an SMS and you have an email address, that’s good enough. You may, of course, in addition to the login to join, also offer your Twitter or Facebook login, in which case we’ll helpfully paint the pictures in a way that reflects your Twitter and Facebook friends. But actually, most people participate using only the SMS and email option.