For example:
There's a whole word class (words ending in AŬ) which is essentially a "Wastebasket Taxon" for his vocabulary: There is no regularity to what ended up there, merely arbitrary choice. That's acceptable in a natural language, but Esperanto is Modern and Scientific and Regular As Oat Bran, right?
> In China, for example, Esperanto was used to introduce western languages.
Really? Do you have any evidence for this? I follow a blog which frequently discusses such things (language use in China) and it's never been mentioned: