[Lynne]

Try this:
Create a new style with no parent:

• Styles & Templates > Style Manager > Add New Style
• Parent Style: No Parent Style
• Title: Default vBulletin
• Allow User Selection: Yes
• Save

Now, turn off your plugins again and browse the site using this totally default vbulletin style with the plugins off - does your name still show up under every single forum as a moderator?

I really don't know what to suggest here because you are using a modification to make the forums look like that and you have a custom template that you created. You may have to go through the code and debug it to figure out why it is putting your name in every spot.