I suspect if push comes to shove, most won’t unsubscribe if the chapter marks go away. My use of bumper music is intended to help those listening to the non-AAC feeds but with devices or tools that can scrub the audio skip segments as desired. I’ve gotten a decent amount of feedback similar to yours, that while folks enjoy the show, they enjoy it more when they can skip a particular story that is maybe not of interest. I’ll consider tweaking the format further if chapter marks go away to make the scrubbing option that much easier to use.