Can't you just take over the already created User:CommonsDelinker accounts? Or just say, that for this to work each wiki has to create an account for you, and send you the password (as agreeing on a password publicly would not be safe). 
<br><br><br>Dami<br><br><div><span class="gmail_quote">On 11/19/06, <b class="gmail_sendername">Gizmo II</b> &lt;<a href="mailto:nahuel.gizmo@gmail.com">nahuel.gizmo@gmail.com</a>&gt; wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
What about starting to make some noise to the foundation about the<br>&quot;unique account&quot; they have been talking about since february?<br><br>--<br>Gizmo<br>_______________________________________________<br>Commons-l mailing list
<br><a href="mailto:Commons-l@wikimedia.org">Commons-l@wikimedia.org</a><br><a href="http://mail.wikipedia.org/mailman/listinfo/commons-l">http://mail.wikipedia.org/mailman/listinfo/commons-l</a><br></blockquote></div><br>