Well, I guess I will be the first to step up and admit this. At the beginning, I didn't go the legit way and purchase a license. I was downloading some stuff off mirc one day and saw vbulletin 2.2.9 on there. I heard about the forums from other sites that I frequented and was currently using a custom hacked phpBB board. I installed the downloaded version of vbulletin and within a few weeks, nukepirates.com sniffed out my sites and emailed me asking for the license number. I didn't know when I first downloaded the board that a license was required, but after a couple weeks of running it, I learned it was. So when I got the email from nukepirates, I immediately purchased a license from jelsoft.
Anyways, the point is.....
I'm living proof that jelsoft has a company working for them sniffing out these illegal unlicensed sites. I am now a proud owner of a licensed vbulletin board
Definately beats phpBB