Uber Rush delivery, the App Store, and other similar platforms are different because they're providing the platform, and more importantly, they're often bringin

Uber Rush delivery, the App Store, and other similar platforms are different because they're providing the platform, and more importantly, they're often bringing you the customer. It's much more reasonable to pay a fee that's a percentage of revenue in that case. I was responding to the person who suggested that Slack charging for chat was analogous to what Substack is doing.