seconded. copyright is a right, not a liability. By not specifying terms in a license jgarzic is just trolling for a reaction. I vote his non-cooperative self-grandizing be rewarded by banning his contributions to svn and the forums. This way he can start his own fork with a license requiring each user to pray to him before launching the client.
The terms are specified by the law. You cannot copy without permission. A license is one way an author gives permission: it lists rights and disclaimers the copyright owner feels is relevant. The MIT/X11 license specifies your rights to bitcoin source, as set out by the author (satoshi).
What you appear to call trolling is what the rest of the world considers standard practice. You cannot just copy CNN's web page, either.