There is no bitcoin specification. Core, the reference implementation, is the closest we have to one. We've never had software that works like bitcoin before bitcoin.

Core currently the reference implementation.

[A] reference implementation [...] is a program that implements all requirements from a corresponding specification.

I'm afraid that the issue we have is not with the implementation, but rather with the 

bitcoin

Other clients are a menace

ZezzebbulTheMysterious

> Core currently the reference implementation.

What is a "reference implementation"?

https://en.m.wikipedia.org/wiki/Reference_implementation

> [A] reference implementation [...] is a program that implements all requirements from a corresponding specification.

I'm afraid that the issue we have is not with the implementation, but rather with the _specification_ itself. It's about Bitcoin's _purpose_.