Go4Expert was on vBulletin since 2004ish and was never upgraded to vB4 for obvious reasons. Xenforo had its legal issues and that is when I decided to create a complete custom solution for vBulletin 3.x making it responsive, modern design, my own custom url structure, Amazon S3 integration for spam and bounce handling etc etc. Soon things became stagnant as I was not able to focus on developing the functionalities further (Drafts savings, FB integrations, Editor Enhancement, YUI removal to name the few). Finally I decided to pull the trigger on vBulletin and look for xenforo as an option but only thing I didn't like about Xenforo was the url structures. So I coded my own url structure in Xenforo to my old category based urls. The new site is live on Xenforo with the new url structures - www.go4expert.com Would really like to know the view of the community about my format of urls?