Better to just remove it, for secrecy and some level of anonymity

app/views/events/show.text.haml

@@ -18,7 +18,6 @@
   != display_attr @event, :url
 - if @event.contact.present?
   != display_attr @event, :contact
-  != display_attr @event, :submitter
 - if @event.tag_list.present?
   != display_attr @event, :tags, @event.tag_list
 - if @event.repeat&.positive?