People whining about down votes and then complaining about it only makes the discussions worse. Your comment is going to be seen by maybe .1% of HN. There are better avenues to raise this issues.
If you want to change how down votes are handled going off topic in a discussion is not how you do it.
If you are complaining about down votes you are polluting the discussion even more than the erroneous down votes themselves.
People are people. It takes more to change behavior than complaints.