Add more invalid identifiers

extension/background.js

@@ -61,8 +61,12 @@ var badIdentifiersArray = [
     'facebook.com/ufi',
     'google.com',
     'googleusercontent.com',
+    'instagram.com',
     'media.tumblr.com',
     'medium.com',
+    'patreon.com',
+    'paypal.com',
+    'paypal.me',
     'reddit.com',
     'reddit.com/r/all',
     'reddit.com/r/popular',
@@ -77,6 +81,7 @@ var badIdentifiersArray = [
     'twitter.com/settings',
     'twitter.com/threadreaderapp',
     'twitter.com/who_to_follow',
+    'vk.com',
     'wordpress.com',
     'www.tumblr.com',
     'youtu.be',