Comment by michaelcampbell

> That API design pattern would be a nightmare!

And yet people have been using it for decades without much trouble. I can't remember ever seeing any complaints about API explosion from adding methods to numbers in ruby, and rails does a fair bit of it.

Possibly one reason is with a fluent API that's pretty understandable, you don't need to rely on autocomplete. (And indeed, all this happened before that was a big thing in tooling.)