Quick Fix you should make – strtolower on answer

I put in a formal name for my answer. The plugin does a strtolower on the user’s answer but NOT the normal answer.

Quick fix:

// do validation
function tom_custom_answer_f($login,$email,$errors){
 global $tom_custom_question_a,$tom_custom_question_z;
   if (strtolower($_POST['tomcustomq']) != strtolower($tom_custom_question_a)){
    	$errors->add('tom_captcha_error',__($tom_custom_question_z));
   };

}

http://wordpress.org/plugins/stop-registration-spam/