Upselling and hidden fees are how a shared host makes a lot of money. Migrations, domain registrations, renewal payments, SSL certificates (even for Woocommerce sites) are all examples of upsells.
Most hosts advertise their "unlimited resources" service as a way to make money. This is certainly something you've all seen. In the actual world, however, there are no such things as boundless resources. Clients who consume a large amount of resources will be throttled by the hosts.









