[thincom2000]

Yes, create the plugin with the following hook: member_complete

And the code:

PHP Code:

$membergroupbits = '';
foreach ($membergroups AS $usergroupid)
{
    $usergroup =& $vbulletin->usergroupcache["$usergroupid"];
    //if ($usergroup['ispublicgroup'])
    if (!in_array($usergroupid, array(1,2,3,4,5))) // Replace 1,2,3,4,5 with Usergroup ID you want to exclude (comma separated)
    {
        exec_switch_bg();
        eval('$membergroupbits .= "' . fetch_template('memberinfo_membergroupbit') . '";');
    }
} 


I personally prefer the file edit so that vBulletin doesn't waste a few milliseconds processing the membergroupbits a second time when it reaches the hook.