In my opinion, every natural language is at least worth being considered for the purposes of transferring knowledge here. But why should one want to use a fictional language like Klingon for the purpose of writing a non-fictional (online) book? Most probably for entertainment reason only. A nice pastime for those who like it, sure. But is a project dedicated to information/knowledge really the right place for that?
Maybe not "the" right place, but certainly not a wrong place either.