diff --git a/src/explore.ipynb b/src/explore.ipynb
index e4ab6c7d05c05b44e73af738b7358b987ac782e0..738d32419694c963988a0c575d60516aeac05fd4 100644
--- a/src/explore.ipynb
+++ b/src/explore.ipynb
@@ -2084,6 +2084,13 @@
     "collections.Counter(list(df_actions['FilterActions'].fillna('log only'))).most_common()"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "So, apparently 'aftv5flagabuse' was deprecated as an action at some point: \"Deleting, AFTv5 removed from WMF wikis --Legoktm 03/03/13\" see https://en.wikipedia.org/wiki/Special:AbuseFilter/history/472/diff/prev/12164"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 14,