For *text browsers, and Firefox when you turn off ALT V Y N (stylesheets)*,
every edit page on the English Wikipedia (and maybe other) shows a 'Page notice'.
E.g., for the above URL, it is
http://en.wikipedia.org/w/index.php?title=Template:Editnotices/Page/One_(David_Karp_novel)&action=edit&redlink=1 ... a redlink of all things!
Here's the useless HTML.
One sees it tries to hide in a "display none",
I thought that was already decided as a bad thing to do.
Just don't inject it if you don't want to splatter it into search engines and peoples text browsers, phones, etc.
<!-- start content --> <div id="editnotice-area" class="editnotice-area" style="clear: both; width: 100%;"><div class="editnotice-link editnotice-redlink sysop-show accountcreator-show" style="margin: 0px 0.8em; padding: 0pt; clear: both; float: right; line-height: 1em; display: none;"> <small><a href="/w/index.php?title=Template:Editnotices/Page/One_%28David_Karp_novel%29&action=edit&redlink=1" class="new" title="Template:Editnotices/Page/One (David Karp novel) (page does not exist)">Page notice</a>
Version: unspecified
Severity: trivial
URL: http://en.wikipedia.org/w/index.php?title=One_%28David_Karp_novel%29&action=edit§ion=0