Agreed on this - it's essentially impossible not to "volunteer". Barring major incapacity for whatever reason.
FWIW I switched to using "Doctor" on QF due to issues with my FF points not crediting as work bookings book as DR when the FF profile was MR and it never credited properly requiring me to call to fix all the time. Now everything is DR and there's less crediting issues. The op-up gods dont really seemed to have noticed the change though.
I seem to have a decent strike rate of that overhead page happening on my flights. Or most recently, a personal "announcement" that they were sorry the service was a bit haphzard in J, but they had a sick pax in Y , followed by the loooong pause waiting for my "would you like some help" response. As opposed to just outright asking.