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I have read somewhere theymos to say something like, "I don't read anyone's PM unless it is necessary. I have once provided some PMs for the requirement of FBI (Or something same) for an investigation."
I can't find that post though.
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Update- Didn't find the one I am searching 

This is not very surprising/interesting, but I thought I'd mention that I received a subpoena for information related to Ross Ulbricht's alleged forum account altoid. I mostly just compiled some publicly-available information. The only non-public data I had to include were some deleted posts in the heroin store topic that were not written by DPR and probably won't be useful in the case.

You might be surprised to learn that this is the first subpoena I've received for the forum.