[po]

In my view, it's ok to downvote something you something disagree with until it gets back down to 1 point. Then downvotes start to censor it and I think it harms discussion unless that comment is one of the things the grandparent commenter was talking about.

[illumin8]

I respectfully disagree. Notice how I'm replying instead of downvoting. Downvoting something you disagree with is just pure laziness. You're too lazy to reply so you just downvote, which contributes to burying the opinion of someone else.

You should focus on upvoting. Downvotes should be reserved for abusive, trolling, or spam comments.

[po]

I don't personally downvote things I disagree with (If it's presented well I sometimes upvote) but I think it's acceptable. If it wasn't supposed to be that way, it would be "flag" with no downvote option. I also personally think downvote should be removed from the UI completely but...

[lwhi]

That sounds really reasonable - I agree. Although, I think I'd probably bring a point that I personally find abhorrent into negative points.