I already help you installed this discuss user app https://stackideas.com/apps/item/6-easydiscuss into your site backend Easysocial application area, it should show those new discussion stream in Easysocial.

Sorry, we have more than one developer but it's not possible for us to show who is posting questions here so it always looks like the same person! Anyway I have looked and see an application called 'Discus' under the User group that is version 2.1.2 and that is enabled and options turned on, but still we don't get anything appearing on the users news stream.

I think I misunderstood - I realise now that you installed that app as it wasn't there before so hopefully now it will work? But if so, I really don't understand what all those options in the EasyDiscuss integrations do?

The integration setting (http://take.ms/1EEDr) determine whether system want to generate those stream and store into the database or not.

This is why it enabled those integration setting by default.

The reason why need to install user discuss app in Easysocial in order to show those stream in Easysocial is because it need this app to populate content in Easysocial with the different stream format layout.

If you submit a story stream in Easysocial, you will realised it doesn't same layout with those new discussion stream.