This is normal behaviour for an artist who cares about his fans. If you're subscribed to a lot of other artists like I do, you can notice they release something ALL THE TIME. Whether it's a book, a new album, a podcast, or at least something. Mark's been silent for a while, so this stream of information feels like magic, though it's completely okay. The more different new stuff, the better! The problem of development hell and long waiting time is it raises expectations and hopes, that are crushed in catastrophic emotional implosions, when you were waiting for something for years, and get not something you were hoping for.