There are a lot of threads that imported from vBulletin 3.8.8, where members have linked other posts in the forums. The link will show something like this, " /forums/showpost.php?p=2386320" Is there a way to convert these old links to how XenForo shows posts, "/forums/link-old-posts.2386320"? Otherwise it is just a dead link within the thread.
Sorry to bump this topic but I changed all the links (Forum with 26.000 members, 135.000 discussions and 3.000.000 postings) to the XF format using the find / replace tool. Have made several different regular expressions to convert all the old into the new format. Now I know that what's there is the actual link to the topic without the need to redirect.
Did also the same with the pictures in the photo albums and a lot more.