http://www.forumbiodiversity.com/showthread.php/40571-XenForo-victory-over-vBulletin! (I currently have a proxy blocker installed, so not everyone can properly view the thread)
^^ In that thread, I've written down the feedback about the two important plugins I want converted to XenForo, before I'll start converting my forum to XenForo. These are the plugins:
1) Post Thank You Hack:
http://www.vbulletin.org/forum/showthread.php?t=295667 (thread currently deleted because of a dispute with the previous plugin author, however, the plugin is protected by the GNU GPL v3, so the thread/plugin should come back soon, in the meantime, I have the plugin available here)
Basically, I want to convert my forum into XenForo, but I want to keep the database history of these two plugins, and I want to use these two plugins on XenForo. My UADisplay is GPL v3, and I think some skilled developer here should get down to work on it right away and convert UADisplay to XenForo. The Thanks hack has been around for a long time, and surely, there should be a similar, compatible plugin for XenForo?
These are the only two plugins that are keeping me on vB4. My forum is fairly big, and it has been below 100,000 in Alexa's global ranking, so if I began using XenForo, it would be good for XF as a whole, because a lot of visitors would discover XenForo. My forum was hacked severely recently in February, and it's one of the reasons I want to ditch vBulletin for good; XenForo is not as vulnerable with exploits as vBulletin is.
I'd like to make the switch, but I need you developers here at XenForo to cooperate with me on this one. There are many vB licensed forum owners who also want to switch to XenForo, but they don't do it for the same reasons as me. I have three years of post thanks plugin history that I don't want to lose, but I also don't want it restricting me from choosing forum platform and supporting the competition.
Other than that, keep up the good work!