PayPal is not the only organization that blocks Tor.

Matthew pumpkin at
Mon Aug 23 20:18:48 UTC 2010

  It is also worth noting that Craigslist prevents the use of Tor albeit in 
a very strange way.

If you try to post using Tor the ad will be permitted at first and people 
can contact you.  However, after about 15 minutes (and it is always about 
15 minutes) the post is "flagged" and disappears.  This happens even if the 
exit node is in the same location as the section where you are trying to 
place the ad e.g. using a Californian exit server and the ad is something 
to do with California.

I can understand that every day or week the Craigslist system has a look at 
the Tor exit nodes directory and therefore can identify Tor nodes.

What I fail to understand is why the Craigslist policy is to permit the 
posting then "flag" it after 15 minutes or so?  Is this automatic?  Is it 
human?  I find it bizarre.  What might be the reasons?
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