Yes.
You could decide to which usergroups you want to show it, or simply remove checking for certain usergroup altogether.
You need to edit plugin (there's only one in this mod), or xml file, whatever you find easier.
Conditional that checks for usergroup is this:
PHP Code:
if (is_member_of($vbulletin->userinfo, 1))
You could remove it (watch your curly braces, you need to remove them too), or add additional usergroups you want to see warning.
Add it in this fashion:
PHP Code:
if (is_member_of($vbulletin->userinfo, 1,2,3,4))
Use usergroup IDs here. It may be easier for you just to add all usergroups you want to see this warning.