Forum like this is a virtual bar. You can learn some things some time, but you can only chew on fuses, digital vs. analog, and cables so many times. If you insisted on only focused approach to audio, you would have much less content and less visitors. Things that interest you can be found and direct practical questions are answered directly and practically more often than not. If one insists on audio-only, subscription to a professional organization journal may be better investement of money and time.
Even this thread, with so many responses, shows that people are interested in talking about virtually nothing.