[jamesbritt]

"Could the argument be made that the minority who surf with Javascript disabled don't necessarily have to be catered to, since they will enable Javascript if they trust the site or find it useful?"

That's certainly true for me. I don't care that a site requires scripting, but I do care when there's nothing to indicate that I'd be better off if I allowed javascript.

This is especially true for sites that let a user begin some set of actions (write a lengthy comment, or fill out a multi-step form), and then simply fail at the end because scripting is disabled.

It is trivial to add a "This site requires JavaScript" message. Leaving it out says you either don't give a shit or don't know what you're doing.