Strongly entertaining a switch to XenForo (only other option would be MyBB) from vBulletin 4, but I have some questions.
What is *not* imported by default from vBulletin? I'm a developer myself, and very comfortable with databases, so I'm sure I could find a way to get xxxx copied over to XF if the importer doesn't do it, but I'd like to know what I'm getting myself into.
I'm presuming a switch to XF will retain old thread (and post) ids so I can (or XF will automatically) set up redirects for old links. Does XF also retain attachments? What about user email subscriptions to threads - does XF import those or will I have to manually set them back up? And user settings such as whether or not they receive email notification for thread updates?