Sound ridiculous? That's because a web request and response is a collaborative effort of the two computers. The World Wide Web wasn't built for this kind of shitty, vaguely-adversarial, commercial-transaction-like interaction that everybody seems to want to turn everything into.
If you place your "content" for "consumption" on the World Wide Web, you are saying clients can connect to that server and request content. To say that certain content is mandatory is completely ridiculous. Restricting content can only be subtractive, that's why a paywall is the only sustainable model for anyone who insists on eternally Septembering their way to profit and riche$ on the WWW.