Status update
Gathering materials to road-test a new debugging methodology:
I put a kitten in a box and deny it food & water until you have answered my question about how to configure BlueZ & PulseAudio.
Presumably I'll need a webcam and a box; not buying the kitten until I actually open the bug report to avoid the inevitable NAK claiming that I did not take care of it properly before filing the issue.
So: webcam recommendations?