As I mentioned right at the top of the thread, a major concern here is the potential for conflicts that automatic changes to cards could cause, which can’t really be solved without major changes to the sync protocol. We could approximate such a feature with a pop-up confirmation dialog and some automatic syncs, but ensuring that all works correctly through the various startup flows like auto-sync, importing, etc on each of the clients is a fair amount of work which nobody has had time for yet.
I know this is a feature you’re keen on, but posts like the above are not really helpful. I’m well aware of the demand, but demand does not solve the technical issues, and your snide comments aren’t exactly motivating.