I disagree, but had to mod you up from the zero you got before I came here: I think your opinion is legitimate and does not deserve a down vote. I think what is

I disagree, but had to mod you up from the zero you got before I came here: I think your opinion is legitimate and does not deserve a down vote. I think what is -- not killing, but corrupting -- HN is down votes on opinions one disagrees with. This is a crack for groupthink to seep in, which is dangerous.