What's "using a computer" though? The trouble with hacking laws as they stand currently is that they are written so broadly that innocuous uses are technically illegal, but where no one prosecutes.

I for one don't want to live in a world where everything is illegal - this hands power to the executive and has been a major source of abuse both past and present.

Say I tell you "DanBC, you're a jerk, you can't access my website anymore". What happens if you visit my website? Are you "using a computer without permission", assuming I own the server?

What is the level of interaction necessary in order for a user to graduate from legally clear to "throw the book at the hacker"?