Latetonite,
Don't be worried. Understand the thread, instead.
We're not discussing how best to 'let the autopilot fly' the aircraft. I've repeatedly tried to steer the post away from individual preferences towards discussing if there is a specific industry best practice or regulation in the presented scenario as we're merely a part of a larger system of traffic nowadays, and it's each of our professional responsibilities to each other to integrate as seamlessly into that system.
I've framed that discussion with reference to a particular case to give some context. If the technology we carry is creating new threats, in this case enhanced Mode S Tx displaying preselected altitude causing ATC to intervene despite the aircraft being flown on the correct lateral and vertical path, then I believe there is a wider discussion to be had.
One of the many benefits of never being the smartest guy in the room is that I can come to PPRuNe and ask my peers for advice. It really is a great tool for that and allows me to be exposed to a wider experience pool.
I hope now you understand the thread and feel less concerned. You could possibly even contribute something constructive.