Dr. Awkward said:
Now, let's look a little closer at what the OP is doing. He is speculating that 4e will Fail To Deliver. It doesn't really matter what the specifics are, because he's not the only one doing this. He, without reference to evidence, is suggesting that 4e will be written in a way that produces generally negative results, and which will detract from everyone's play experience. By spreading misinformation (sleep does damage) and starting groundless rumours (there is no way to do nonlethal damage in 4e), he seems to be making an attack against the edition for whatever reasons he has to do so. This is negative behaviour.
However, if a poster makes a groundless speculation that 4e will contain some feature that will be really excellent and which will improve everyone's play experience, he is not engaging in negative behaviour. He might be in error, but his error is merely wishful thinking, rather than pernicious slander. He may spread misinformation, but he does not want to rally an attack against either 3e or 4e. He's just groundlessly optimistic. Naive, perhaps, but not trying to start a fight.
I think that trying to get people together to hurl invective at the new edition without ground is a much worse behaviour than trying to get people together to be happy about an unreal feature of the edition. It causes more fights, spreads more negative feelings, and is generally a more aggressive and combative stance.
Those who have a problem with 4e, and whose beef is grounded in actual information, have a valid case to make, as long as they acknowledge that their problem may be only due to their having no access to the sections of the rules that solve their problem. However, this caveat also applies to people who are pleased about the implications of revealed information--those implications may not hold true once we have the entire rules. But neither of these stances is pernicious in the way that the OP's position is.