Two quick questions:
1. What is the behaviour for auto subscribing commenters and thread creators? Is it vBulletin style, that is, when someone posts on a thread, they are auto subscribed, or phpbb style, that is, subscription is an optional second step.
2. What are the options for exporting the data from xenforo? Drupal is our primary CMS, and we already run a large forum with it quite successfully. In future, we might well want to either bridge it or migrate to Drupal. What are the options here?