This question already has an answer here:

Many of my posts had -10 and -20 all on one day.

Did I upset someone?

I do not see how all those could get downvotes all in one day.

marked as duplicate by Videonauth, Thomas Ward, muru, Seth Jun 9 '16 at 17:04

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • This is a duplicate of the specified question. The core reason for the rep change is identical. – Thomas Ward Jun 9 '16 at 17:00

Browse other questions tagged .