Well I know its different. The main reason I changed it because Vbulletin 4 was about to be made obsolete by PHP upgrades and i did not want to keep a older PHP on just one of the websites on my server. I did not want to purchase a Vbulletin 5 upgrade because i am not a real fan of the direction VB5 has gone. i own a license on another server and do not like.
I read awhile back where some of the original founders of VB had left because of differences with the new owners and started their own company, Xenforo.
So far i like Xenforo, everything ported over well as can be expected, the server load is half of what it used to be on this site. All those VB4 exploits are no longer a concern.
I know the look is modern, i wanted to give us a newer feel and have a platform on which to display some new items from the new YS2 game. It is moving a little faster pace these days and we want to be able to share stuff.
If you find any bugs please let me know. i will start a bug thread.