User registration is now enabled on all mimec.org sites and it's required to post comments and forum topics. I appreciate all comments you posted so far and I'm always trying to respond as fast as possible. So I hope the need of registration won't discourage you from expressing your opinions. In fact, I hope it will encourage you to contribute to these websites more actively :).
Please note that user information is not shared between the mimec.org sites, so you need to register separately on each of them. I guess it's not a big problem as the target audience of these sites is slightly different anyway.