[Rspamd] Reduce 00 bad subjects score

data/conf/rspamd/local.d/multimap.conf

@@ -168,6 +168,6 @@ BAD_SUBJECT_00 {
   header = "subject";
   regexp = true;
   map = "http://nullnull.org/bad-subject-regex.txt";
-  score = 20.0;
+  score = 6.0;
   symbols_set = ["BAD_SUBJECT_00"];
 }