One day I decided to test out vBulletin on my site. No one else knew about it but me. It turned out that vBulletin was informed about this since this version (v3.8.3) is not nulled, so they suspended my site. After learning this from my ISP, I simply did not agree with the way vBulletin treated the situation considering I wasn't even using their forum software on my site. They could have informed me directly instead of being a bunch of lazy pussies and I would have gladly removed it, but they didn't, so my users suffered downtime. As a result, I decided to torrent and share this with others. Now that I have nulled versions (see below), these ones cannot be detected by vBulletin. However, it is possible that someone may still snitch to your ISP about using something you did not pay for.
Since v3.8.3 is NOT null, I highly recommend NOT using it. Instead, use one of the newer versions below.
***********************************************************************************
That's my story. Enjoy the software. Here are the latest and greatest versions available as of December 21, 2009 (v4.0.0):