I'll obviously have to disagree with this. My experience on dKos has been mostly positive, with only the odd hostile comment, even if there are sometimes surprising disagreements, on economic issues for instance (where kossacks are to a surprising extent to our right).

Always try to get a clarification before you take any comment as an attack or an insult, you'll be amazed at how much civility this brings into the discussion.

In the long run, we're all dead. John Maynard Keynes