When I’m on vacation and have a mail hold, I still know what mail cane each day. If I see a bill I know to log in and pay the bill.
I know if I have an important letter and whether it’s worth rushing to empty the box for the day.
A few times I knew to go ask the neighbors if they had my mail because I saw a letter was supposed to come but didn’t.
Also it tells you about packages that are coming that day so you can make sure you get them and that they weren’t stolen by a porch pirate.
Mail is scanned and archived anyway, and has been for years. This service merely let's you see the images they already have on hand. It costs not very much extra to add a customer side to an already existing system.
It's useful for people whose mailbox is down the street and it's useful to know if your mail is getting misdirected.
By seeing the mail I should be receiving, I know to talk to m neighbors if it doesn't show up in my box within the next day or two. We continue to have delivery issues about every couple of months.
Even if that was true, which it isn't as far as I can tell, that would be counter to the USPS's goals. They make a lot of their money delivering junk mail.
I have this and get an email every day showing me a bunch of mail I don’t want or need.
I also don't know what problem this really solves. Grasping at straws for the USPS to remain relevant I think. Big waste of money in my opinion.