<p dir="ltr">This may or may not be helpful, but all the way back in 2014,
Isa worked on a fix for this while still at Twitter. We met up at HOPE and
discussed concerns on both sides a bit, and talked about how to incorporate
the exit lists into their firewall. This was the first time the problem was
fixed.</p>
<p dir="ltr">The problem reappeared after a couple of months, so the fix
was clearly not permanent. The second time I spoke with various people at
Twitter and again there was discussion of how to keep the
whitelist/greylist up-to-date, how to compliment twitter's existing
report/behavior detection system, and how restricting access from Tor IPs
disproportionately affects censored Twitter users (Turkey's block was still
pretty fresh on people's minds). </p>
<p dir="ltr">All in all, there were three or so rounds of Twitter blocking
discussion between me and various Twitter peeps. I'd say that the three
problems that surfaced in these discussions were a) lack of "problem
ownership" on either side, b) lack of awareness of the problem on Twitter's
side (everyone always spoke as if the problem were new, that they'd never
heard of it etc), c) Twitter repeatedly implementing fixes and then either
not updating them or forgetting about them entirely. Automation is very
straightforward, at least for importing the list of exits.</p>
<p dir="ltr">You're in a better position than really any other
Tor-affiliated person, since you've been invited. So, I'm pretty optimistic
about a long-term fix.</p>
<p dir="ltr">best,<br>
Griffin<br></p>
<p dir="ltr">* caveat: Isa knew about the problem and already had a solid
idea for a fix. Now she works for Tor :-) Coincidence!!!<br>
</p>
<div id='cm_signature'> -- <div>Sent from my phone. How many NSA
programs is that?</div><div>"The E in email stands for Evidence." ~Willie
Brown</div> </div><div class="cm_quote" style=" color: #787878">On Thu, Mar
17, 2016 at 5:58 PM, David Fifield <<a
href="mailto:david@bamsoftware.com">david@bamsoftware.com</a>>
wrote:</div><br><div id="oldcontent" style="background: rgb(255, 255,
255);"><blockquote style=""><p dir="ltr">I was invited to go to Twitter and
talk about Sheharbano's, Sadia's,<br>
Mobin's, Srikanth's, Vern's, Steven's, Damon's, and my research about<br>
web sites blocking Tor users:<br>
https://www.benthamsgaze.org/2016/02/23/do-you-see-what-i-see/<br>
<br>
I'm not a Twitter user, beyond sometimes reading the web interface, so I<br>
haven't experienced blocking myself. But I've heard of Tor users being<br>
blocked by Twitter. Is there anything you'd like me to say to or ask of<br>
them? I know about the #dontblocktor hashtag (which is more often<br>
directed at CloudFlare than Twitter); I know that Leif was off Twitter<br>
for a while; I know about Marie's survey of users at<br>
https://pad.systemli.org/p/twitterdontblocktor. Anything else?<br>
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</p>
</blockquote></div>