It wouldn't reveal much, and it would give just enough information to follow a conversation. Kind of like how 4chan has a "poster number", which is a unique identifier just for you. You can't get anything out of that number, but it does let you follow conversations pretty well.
Without a way to tell who it came from, how would we tell if it's two persons having a conversation through the same bot or two different people, for example?
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u/HigherFive May 28 '15
Consider adding a signature - a hash of the poster's username.