And Rosta scripsit:
2. Naturalist Lojban might in its own right be of some intrinsic
interest to linguistics, but more as a curiosity than as anything
that can advance the central research goals of linguistics.
Well, the central research goals of Chomsky-style linguistics, anyway.
Sociolinguists and functional linguists certainly might be interested.
I imagine cognitive linguists would also find it interesting from the
point of metaphor. Lojban combines the explicit metaphor-making of
lujvo (which are not metaphorical in the common sense of the word, but
are in the cogling sense) with an attempt to suppress unmarked metaphor
(which to a mainstream cognitive linguist would be quixotic but
interesting).