There's a simple tweak for this;

Open ./reputations.php file and find;

PHP Code:

if($mybb->settings['negrep']) 


and Change it to;

PHP Code:

$group = "3,4,6,8";
$groups = explode(",",$group);
if($mybb->settings['negrep'] || in_array($mybb->user['usergroup'],$groups)) 


You may Change 3,4,6,8 to the Usergroup IDs you wish to allow them to be able to send Negative Reps. But its a core file edit, if you upgraded your forum with this file changed then you'll need to edit the same file with the same procedure after Upgrade.

Very simple yet elegant, nice work!

Thanks.

Thanks for this, will be using it!

Thanks.

It doesn't work for me? Any updates or?

Make sure you are editing the correct code. It should work.

This is don't work for 1.6.5, can you repair this code?

THANKS IN ADVANCE!

^I believe 1.6.5 has this feature by default.

^Where is the feature by default?....huh!

No,its not coming in my acp...