What do you mean by unlisted? I forwarded it, then received a mail from smannesty containing direct link to the thread.

EDIT : oh, I also removed the private key from url param before posting it here.

EDIT 2 : typo in my initial message: by "followed", I meant "forwarded" (in french, we say "faire suivre", which translates word by word to "make follow")

Oh, okay, I thought you saw it on the front page, but the latter only shows conversations with more than two emails.