In my own case because I express some controversial ideas on the topic of gun control, I have found out that discussions typically tend to be echo chambers. People who have a certain ideology do not care about facts or logic or the statistics in many cases. If we had an ability to discuss politics over Tau it could actually produce some progress which we seemingly can't have discussing politics over Facebook or even Steem.

Productive discussion, that being a political discussion which produces some useful idea, is almost impossible to have over Facebook. Facebook algorithms tend to group people with those who share similar views to such an extent that serious discussion becomes impossible. This is fine for cheer leading but not good if you really want to expand the Overton Window as they say.