Your first link is a months-long back-and-forth between a developer who finished the HSP functionality and PulseAudio maintainers. They aren't on the same page about how to best integrate the code and seem to be very upset at each other. Is the dev being petulant? Are the maintainers being unreasonable? Hard to tell as an outsider, but there's been no progress for 5 months now.
Project management issues like that is the one area where open source continues to struggle.
tonyhb|5 years ago