That is an incentive for some shippers for sure, and it gets pushed down onto the (often overworked) delivery drivers. They have metrics on how many things they should deliver or attempt delivery each day and are sometimes judged harshly on those metrics.
I have multiple times seen an "Out for Delivery" package switch to "Delivered" or "Delivery Attempted" at 10pm, presumably when the driver ended their shift and didn't want to be penalized for the undelivered packages. They usually showed up the following day.
> I have multiple times seen an "Out for Delivery" package switch to "Delivered" or "Delivery Attempted" at 10pm
Exactly this, it's infuriating.
And you can usually tell because a) it's marked as delivered at a time rounded to a perfect hour, like 2:00 pm or 9:00 pm (not 8:34 pm), and b) there's no delivery photo, when there always is otherwise.
But yeah, it's the driver not being able to make all deliveries (probably not their fault), but needing to fake the metrics. Usually they drop it off the next day or two days later, but other times it just gets lost, and it's harder to get a refund from the seller because it says delivered. So e.g. eBay will side with the seller in a dispute.
I have multiple times seen an "Out for Delivery" package switch to "Delivered" or "Delivery Attempted" at 10pm, presumably when the driver ended their shift and didn't want to be penalized for the undelivered packages. They usually showed up the following day.