Well, what was it you wanted to achive? Someone who is put of by the 0.6 is just stupid, tbh. Besides, the only people who care about a version number are the ones who are already, to a certain extend, particullary interested in software and probably aware of the complexity of this product.
LFS wouldn't "sell" any better if it would be called 6.0, since it simply isn't finished yet and that is hardly to cover up by just a number.
They already took a step forward, regading stability, and got rid of the alpha tag.