Yeah, I'm really big against most sites that require Javascript to function. Personally, I think as a developer you should be not enforcing something that potentially could compromise their security. Instead, either program the whole thing around without forcing Javascript, or provide an alternative site if it detects the user doesn't have Javascript enabled.

This forum software is great in terms of general use without Javascript. I've actually had to enable it a few times for moderator actions, since there were certain pitfalls while taking certain actions.