diff --git a/static/html/robots.txt b/static/html/robots.txt
index 483e53c..aea46ec 100644
--- a/static/html/robots.txt
+++ b/static/html/robots.txt
@@ -1,10 +1,12 @@
-# prevent bots from signing up for demo accounts
+# prevent bots from signing up for demo accounts, etc.
 User-agent: *
 Disallow: /users/demo
 Disallow: /users/thanks
 Disallow: /users/thanks_download
 Disallow: /notebooks/export_csv/
 Disallow: /notebooks/export_html/
+Disallow: /forums/general/create_thread
+Disallow: /forums/support/create_thread
 
 # this crawler is completely broken and requests many invalid URLs
 User-agent: panscient.com