The problem is that, as others have mentioned, from openness results social pressure, and social pressure can severely affect your decisions. On the other hand

The problem is that, as others have mentioned, from openness results social pressure, and social pressure can severely affect your decisions. On the other hand, openness of course leads to transparency, and transparency prevents corruption and lobbying (to a considerable degree, at least). Interestingly though, this is also due to social pressure. My vision would be a system that combines techniques such as the ones deployed in BitCoin and NameCoin (Public Keys) to ensure unique identities but still preserve anonymity. In a such a system, everyone could freely speak their mind anonymously, yet still be accountable (in this case meaning he or she can be identified as some individual, but not as a specific person). This would also lead to reducing debates to facts and arguments, by effectively completely depersonalizing it. It would no longer be about people, it would be about problems, ideas and solutions. I don't really know if this technically feasible (I'm not even sure if it makes sense to anyone but me), but I think it would solve many of the problems with real democracy.