What’s wrong with the JSON gem API?

As I mentioned at the start of my Optimizing Ruby’s JSON series of posts, performance isn’t why I candidated to be the new gem’s maintainer. The actual reason is that the gem has many APIs that I think aren’t very good, and some that are outright dangerous. As a gem user, it’s easy to be annoyed at deprecations and breaking changes. It’s noisy and creates extra work, so I entirely understand that