When Dan speaks about billing users, he is referring to an accounting of their usage, not an invoice to be paid. You only get as much bandwidth as EOS tokens staked. The ratio will adjust as EOS Block Producers scale their equipment.
You can never exceed your maximum bandwidth. Instead, you will experience slower transactions. This prevents spamming. If you flood the system with transactions beyond your capacity, the system just spreads them out (in time) for you. You simply cannot take someone else's guaranteed bandwidth. A large blockchain on EOS will require more EOS tokens staked to guarantee them the speed they require.
This same method applies to storage on EOS. If you reach your maximum storage capacity then you simply can't save anything else to the blockchain until you delete some of your current data or stake more EOS tokens. Storage and bandwidth are "rated" separately. Both require an amount of tokens independent of each other. Some data will need to be stored indefinitely. This imitates "burning" tokens and will lower the circulating supply.
Dan is not referring to dollars. You will never receive an invoice. I hope this clarifies the situation for some people!
Clay
