Summary: new free tier accounts that get automatically cleaned up after a while.
Initially I thought AWS were guaranteeing this wouldn't cost you money, but:
> What happens if I exceed the free usage limits of always-free services?
>
> If you exceed the free usage limits, your account will begin incurring charges
Initially I thought AWS were guaranteeing this wouldn't cost you money, but:
> What happens if I exceed the free usage limits of always-free services? > > If you exceed the free usage limits, your account will begin incurring charges
https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2...