Hi Kier, Can you share with us what constrains you ran into SpaceBattles upgrade? This should help other owners who want to upgrade larger forums to XenForo. From the tweets, you started the upgrade on 26th and finish it on 1st. I recently imported a small forum (1 million posts) to XenForo on an Axivo optimized server and it took me the same amount of time. In my case the issue was mostly related to the HUGE number of attachments that needed to be imported into XenForo format (over 1ooGB). To my satisfaction, the posts were imported perfectly through the web interface. I think a special importer should be created, that can run directly through console. It will probably avoid the browser timeouts and eventual crashes that were generated out of the blue while importing the images. These are some of the missing tasks I noticed through import: ability to move a number of users from a deprecated group to Registered group ability to mass ban users, moving them from a vBulletin Banned group and feature each user as XenForo banned ability to delete all threads for a specific banned user (Spam Cleaner just fails) The main concern is: will a large site accept to have the forums closed for a week? To some that means important revenue loss and might stop them from moving the site to the new software because of that. Personally, I know people who will definitely complain if the forums are down for only 2 days.