Absolutely wild.

Just as a community-supported plug here on the billing documentation front, we just launched https://cur.vantage.sh/ which we will never paywall. It's meant to be a free resource for looking up AWS billing codes with descriptions in layman's terms...specifically because AWS' documentation is so sparse/rough here.

We also maintain https://ec2instances.info/ which we'll try to add more documentation to (we recently added helpful docs and articles on each instance type page) to try and help the broader community.