I just got 3 downvotes in a row on 3 of my recent answers. I also just asked a question, got 2 bad (IMO) answers and downvoted those answers. Coincidence? I think not.
I have since went back and took away the downvotes I gave to the 2 answers, and now the downvotes on my 3 answers have been taken back too. Can SO do anything about people like this who downvote bomb you?