It's my policy to downvote any comment that complains about downvoting. However, it would be better in this case to not even respond to GP's inane scribbling. Trust the downvoters to get around to it eventually.
I prefer giving reasons why behavior should be corrected as opposed to downvoting and hoping they can divine why they were downvoted (like whoever downvoted my comment with the reason why his comment was bad, I have no clue what they objected to, so they accomplished little.)
It's my policy to downvote any comment that complains about downvoting. However, it would be better in this case to not even respond to GP's inane scribbling. Trust the downvoters to get around to it eventually.