Functionally, that's exactly what it is. Drivers get paid a criminally low base rate for accepting deliveries, which is what gets raised the longer an order sits without someone accepting it, as the other user mentioned. It works practically the same as states that have $2 wages for servers that get made up with customer tips. You can tip $0 if you're fine waiting an hour+ for someone to accept the order if you live in a larger city. There's no incentive for drivers to accept lower paid orders. The solution isn't to be Mr. Pink though, it's to not use delivery apps, tip a decent amount with the knowledge that the drivers don't get paid much, or work to regulate the industry to enforce reasonable minimums so that drivers don't have to rely on tips, just like with restaurant servers.