Yes I have, and in that he reiterates that it's just to achieve unqualified access (i.e. save a few keystrokes, which is not an issue with any moderately good IDE):

> I came up with the idea of putting the utility methods in their own class, SchemeUtils, and then having the five other top-level classes extend SchemeUtils. That way, I can use the unqualified name, and I get the modularity I want.

It's not a huge deal in his project since he obviously wasn't using OOP anyhow, but it really is an abuse of inheritance with no benefit.

What IDE will hide the qualifying class names of method calls? I was searching for that yesterday, but the best I could so is syntax highlighting to make classes display in a very faint color, but Eclipse can't distinguish type declarations from method qualifiers from class declarations, nor will it fold away the class names I want to hide, so it's not ideal.

Coding is 10% reading and 90% reading, so an IDE that only helps with writing code is approximately worthless.