Most vBulletin users either think they have to leave powered by vBulletin in their vB powered forum title or they do not know how to do it, well, you can remove it from your forum without the need to pay vBulletin to remove it, its the footer signature you need to pay if you want to remove.

Now that we have just reinstalled this forum, the powered by vBulletin is back on, here is how I removed it:

1. Login to your vBulletin control panel
2. In Phrase Manager, search for phrase variable: x_powered_by_vbulletin
3. It looks like this when you found it {1} - Powered by vBulletin
4. copy and past {1} to the impute box as indicated in the attached image
   
5. Save changes and you are done