I would guess that this question would have gone to a search engine. Now they've got hooks to answer the question directly which... is based on a subscription service.
The API would probably have be retooled to
* work when you aren't signed in
* flag and separate commands and UI from logged in and not logged in
* return *more* annoying messages about not being subscribed when you tried to interact with the results (clicking or asking follow up questions)
It's not worth bothering to answer these questions you'd usually take action on in the service if you aren't subscribed to it. This is really kind of a dumb thing to whine about