All your arguments against "super boxes" also work against post boxes where you drop off your mail - which work fine (at least, it does here in the UK). Admitt

All your arguments against "super boxes" also work against post boxes where you drop off your mail - which work fine (at least, it does here in the UK). Admittedly one-to-many box is a more complicated device than a many-to-one, but the principal is still the same - it is perfectly possible to maintain such infrastructure, anyway.