diff --git a/gen-ignores.py b/gen-ignores.py
index abf9b96f63de7301aac093e7ab5d0eeeb2452226..e0dae51eac4a7cb40a6a8f11d070f51f72edbac1 100755
--- a/gen-ignores.py
+++ b/gen-ignores.py
@@ -20,7 +20,7 @@ for fn in glob.glob(os.path.join(archivebot_ignore_path, '*.json')):
         with open(fn) as fd:
             print('\n\t// %s' % os.path.basename(fn))
             for p in json.load(fd)['patterns']:
-                if '\\\\1' in p or '(?!' in p:
+                if re.search(r'\\[0-9]', p) or '(?!' in p:
                     # RE2 does not support backreferences or other
                     # fancy PCRE constructs. This excludes <10
                     # patterns from the ignore list.
diff --git a/ignore_patterns.go b/ignore_patterns.go
index 4c38ff6f707d7817072a42d2c742264bcbcaec10..319b294823aa7b9327a33e5e8d5a1023a84db675 100644
--- a/ignore_patterns.go
+++ b/ignore_patterns.go
@@ -79,7 +79,6 @@ var defaultIgnorePatterns = []string{
 	"[\\?&]undo(after)?=\\d+",
 	"^https?://a\\.wikia-beacon\\.com/__track/",
 	"^https?://beacon\\.wikia-services\\.com/__track/",
-	"([\\?&]title=|/)Special:(PrefixIndex|WhatLinksHere|Contributions|ListFiles|ListUsers)/.*/\\2/",
 	"/User_talk:.+/User_talk:",
 	"/User_blog:.+/User_blog:",
 	"/User:.+/User:",
@@ -135,7 +134,6 @@ var defaultIgnorePatterns = []string{
 	"[\\?&]undo(after)?=\\d+",
 	"^https?://a\\.wikia-beacon\\.com/__track/",
 	"^https?://beacon\\.wikia-services\\.com/__track/",
-	"([\\?&]title=|/)Spezial:(Pr%C3%A4fixindex|(Linkliste|Verweisliste)|Beitr%C3%A4ge|(Dateien|Dateiliste)|(Benutzer|Benutzerliste))/.*/\\2/",
 	"/Benutzer_Diskussion:.+/Benutzer_Diskussion:",
 	"/User_blog:.+/User_blog:",
 	"/Benutzer:.+/Benutzer:",
@@ -478,7 +476,6 @@ var defaultIgnorePatterns = []string{
 	"[\\?&]undo(after)?=\\d+",
 	"^https?://a\\.wikia-beacon\\.com/__track/",
 	"^https?://beacon\\.wikia-services\\.com/__track/",
-	"([\\?&]title=|/)Especial:((P%C3%A1ginasPorPrefijo|P%C3%A1ginas_por_prefijo)|(LoQueEnlazaAqu%C3%AD|Lo_que_enlaza_aqu%C3%AD)|Contribuciones|(ListaIm%C3%A1genes|Lista_de_im%C3%A1genes)|(ListaUsuarios|Lista_de_usuarios))/.*/\\2/",
 	"/Usuario_discusi%C3%B3n:.+/Usuario_discusi%C3%B3n:",
 	"/User_blog:.+/User_blog:",
 	"/Usuario:.+/Usuario:",
@@ -601,7 +598,6 @@ var defaultIgnorePatterns = []string{
 	"SESSION_ID=",
 	"showcal\\.php",
 	"site=guestbook.+type=(?:ASC|DESC)",
-	"/sites/all/(sites|modules|libraries|scripts|themes)/.+/\\1",
 	"Souprava=.+Souprava=.+",
 	"Special:Whatlinkshere",
 	"start-index=-\\d+",
@@ -768,7 +764,6 @@ var defaultIgnorePatterns = []string{
 	"[\\?&]undo(after)?=\\d+",
 	"^https?://a\\.wikia-beacon\\.com/__track/",
 	"^https?://beacon\\.wikia-services\\.com/__track/",
-	"([\\?&]title=|/)Sp%C3%A9cial:((Index|Pr%C3%A9fixes|Prefixes)|(Pages_li%C3%A9es|PagesLi%C3%A9es|Pages_liees|PagesLiees)|Contributions|(Liste_des_fichiers|ListeDesFichiers|Liste_des_images|ListeDesImages)|(Liste_des_utilisateurs|ListeDesUtilisateurs|Utilisateurs))/.*/\\2/",
 	"/Discussion_utilisateur:.+/Discussion_utilisateur:",
 	"/User_blog:.+/User_blog:",
 	"/Utilisateur:.+/Utilisateur:",