add blacklist to usernames

server/utils/constants.js

@@ -0,0 +1,39 @@
+exports.blacklistedUsernames = [
+  'bonfire',
+  'account',
+  'user',
+  'challenge',
+  'challenges',
+  'completed-challenge',
+  'completed-zipline-or-basejump',
+  'completed-bonfire',
+  'map',
+  'learn-to-code',
+  'about',
+  'api',
+  'explorer',
+  'field-guide',
+  'completed-field-guide',
+  'jobs',
+  'nonprofits',
+  'api',
+  'sitemap.xml',
+  'get-help',
+  'chat',
+  'twitch',
+  'get-pai',
+  'get-help',
+  'nonprofits',
+  'nonproifts-form',
+  'jobs-form',
+  'unsubscribe',
+  'unsubscribed',
+  'cats.json',
+  'agile',
+  'privacy',
+  'stories',
+  'signin',
+  'signout',
+  'forgot',
+  'reset'
+];