I recently came across an interesting case of spammer account posting partial copies of prior answers in order to simulate legitimate activity. "look, not all my posts are about spam"
Even after I generally figured their trick, it turned out quite cumbersome to manually detect particular answer they've been copying from. Could there be a way to somehow automagically aid in that?
Kind of heuristic or diff capable to detect that particular answer is a partial copy of one of prior answers to the same question.
Those having sufficient privileges at Programmers can check the link to example deleted answer to find out more details on that particular case.
Note without providing an accurate, easy to verify reference to from where the answer was copied I would not even think about flagging spammer's stuff - since it looked pretty innocent in isolation.