When I discovered SE, I naturally joined Q&A sites related to my interests. But now I would like to start learning about a new subject that SE is covering. Is there any feature that I missed that would present basic questions about the subject, something like getting started on that particular subject ? That could be key references, basic questions, awesome answers... I know this does not apply to any subject though (Mathematics e.g.), but this would be an interesting way for new users that don't have questions yet to discover a subject on SE.
A "Getting Started" subject is rather awkward. Most attempts at phrasing it "How do I start learning X?" or "What books should I read to start doing X?" are considered subjective and not the good kind of subjective.
You'd be better off Googling the topic in mind. Get started on whatever tutorial you can find and then when you run into actual problems, ask questions on the related SE site. Asking "How can I get started doing X?" questions on SE will only result in downvotes and "close for off-topic" or "close for not constructive".