Generally the consensus is that the more the companies know about bugs, the quicker they can fix them, and create a safer environment for us, the users.
The consumer preview of Windows 8 has been out for a few weeks now. Long enough for users and reviewers to start offering opinions based on experience vs. rumor.
Security is always an important topic, made more so
this year as several large profile security organizations were hacked including
RSA Security and Verisign.