diff --git a/src/config.js b/src/config.js
index 21ce006..e6372b0 100644
--- a/src/config.js
+++ b/src/config.js
@@ -1,4 +1,6 @@
-exports.ORG_WHITELIST = ['preset-io', 'Polidea', 'polidea', 'airbnb', 'dropbox', 'lyft', 'Flexiana', 'Turing'];
+// these are known github orgs we care about - we'll automatically tag people belonging to them
+exports.ORG_WHITELIST = ['preset-io', 'airbnb', 'dropbox', 'lyft', 'Flexiana', 'Turing'];
+// these are individual github handles that we tant to add explicit tags for.
 exports.USER_ORG_XREF = {
   'michael-s-molina': 'Turing',
   maloun96: 'Flexiana',
@@ -8,10 +10,10 @@ exports.USER_ORG_XREF = {
   'rosemarie-chiu': 'Preset-QA',
   'adam-stasiak': 'Preset-QA'
 };
+// these GROUPS serve to aggregate people from the above two sets.
 exports.ORG_GROUPS = {
   Flexiana: 'preset-ext',
-  Turing: 'preset-ext',
-  Polidea: 'preset-ext'
+  Turing: 'preset-ext'
 };
 // Heroku app needs to be woken up periodically to prevent it to go to sleep
 // https://quickleft.com/blog/6-easy-ways-to-prevent-your-heroku-node-app-from-sleeping/