Most of the commenters here refrain from being antisocial dicks. There's no reason to believe anonymous polling will change that.

Anyone actually making life-or-death decisions on the basis of an internet forum poll has a non-trivial chance of being selected out of the gene pool for related reasons.

Sometimes you want or can accept brutal answers.

Individual responsibility. You can't legislate for or even concern-troll people into having common sense, even assuming common sense is a well-defined and useful property.