alt Hacker NewsYour analogy is well off.
You hire a contractor and agree they'll bill you per tile, regardless of how many tiles there are. They bill you per tile. End of story.
For a more acurate comparison, consider a utility. You agree to pay for your electic bill. It's not the utility's fault you invited all your friends who decided to run a crypto mining LAN party, and they can't cut you off lightly because it might literally kill you (e.g. you live in a hot place and rely on AC to stay alive).
When people created firebase keys years ago they did not expect or imagine these keys would become valid for AI that didn’t exist years down the line.