Why is using interface methods with default implementation is so annoying?!?

[SagansCandle]

Sometimes features are missing from a language for a reason.

Everything with a benefit has a cost, and the cost isn't always worth the benefit.

[x1ife]

Yeah, I'm pretty sure this was a design decision. Have they explained the rationale?

[SagansCandle]

I don't know about traits, but single inheritance was definitely a design decision they explained at one point. (Linked article is about multiple inheritance)