>So I suppose ... anyone who claims Shakespeare can be appreciated in anything but English is just "lying to himself and others" (as you said in an earlier post).
It cannot be appreciated to the same degree, no. Just as a 6-year-old cannot appreciate Shakespeare to the same degree that a 50-year-old English literature professor can appreciate it. How this is at all debatable, I have no idea.
> With time, assuming the language is used by a significant number of people, it will acquire such a history.
This will of course never happen.
> Still, while young languages don't have a rich history compared to older languages, they have other advantages (of which Lojban has plenty).
There are alternative solutions to requiring everyone to learn a second language. For example, expressing oneself more clearly. This can be accomplished to any desired degree in modern languages.
> Also remember that the history that has accrued to older languages is a double-edged sword. Because of this "baggage" it's sometimes difficult to express precisely what you mean without being misunderstood (or perhaps to even know what you mean -- see the Sapir-Whorf hypothesis). Lojban is designed to help overcome such difficulties.
On one edge of the sword: the lasting effects of the most skilled manipulators of the given language. The other edge: occasional difficulties with ambiguity and linguistic relativity. To dull the second edge, Lojban requires that we flatten the first. No thanks.