<p>I have been downvoted on 5 answers this morning, the downvotes occurring in a batch with no comments left. The obvious conclusion is that some user decided for whatever reason to pick on me. Can you suggest some simple checks, heuristics or algorithms that can be put in place to help eliminate this sort of negative StackOverflow behaviour.  </p>

<p><img src="https://i.stack.imgur.com/rQ6IW.png" alt="enter image description here"></p>

<p><strong>UPDATE</strong></p>

<p>As pointed out by @whuber, there are algorithms in place to detect serial downvoting. This instance of serial downvoting was recognised and reversed. Hurray for algorithms</p>
