Re-posting this from announcements for the sake of discussion:

As of today, the NDA for Spiral Knights has been lifted. This means that you are free to discuss the game outside of our forums.

Please respect that Spiral Knights is still in development. We ask that you please not post exploits, bugs, etc. and instead use the proper channels in game on the forums for such things so that we can take care of them.

We're very happy to finally let everyone know about the world that we have worked so hard to create. If you enjoy Spiral Knights, please let your friends, neighbors, family, dogs and cats know so that we may continue to build upon our community with wonderful folks like yourselves!