kin.controller.php 에서

$user_point = $oPointModel->getPoint($oComment->get('member_srl'), true);

$give_point = $oKinModel->getKinPoint($oSourceDocument->document_srl);

$give_point = abs((int)($give_point/2));

빨간 부분을

$give_point = abs((int)($give_point*0.8));

$return_point = abs((int)($give_point*0.2));

로 바꾸시고

$oPointController->setPoint($oSourceDocument->get('member_srl'), $owner_point+$give_point);

이부분을

$oPointController->setPoint($oSourceDocument->get('member_srl'), $owner_point+$return_point);

로 바꾸시면 될 것 같습니다.