If I believe there's a good reason to help them improve, then I can do so and there's no need to also down vote, as my feelings will be on display for everyone

If I believe there's a good reason to help them improve, then I can do so and there's no need to also down vote, as my feelings will be on display for everyone to read. Also, most posts with flaws do contribute to the discussion, I just disagree with the reasoning. That's not the right place for a down vote. IMO. A down vote might be used for a situation where someone else has already explained why the comment is not helpful, or perhaps something beyond redemption like "Pwned, LOL" :-)