[vkethana]

One reason why IPA isn't a good choice is that etymological spellings are very important, and IPA doesn't really preserve those. For example, French "biographie" (BYOO-graffey) sounds very different from English "biography". But because these archaic spellings are preserved, it becomes easier for English speakers to learn French and vice versa.

IPA is also a little trickier to adjust to because it has letters not found in English. Someone who's never seen IPA before would have a hard time guessing how to read dʒ or tʃ. (Granted, the point of IPA is scholarly accuracy and not ease of learning so this is an understandable choice the creators made.)

Another thing to consider is that adding new letters creates a lot of overhead for new learners even if it reduces the total # of characters in the alphabet. Ideally someone who has never seen VJScript can scan over a sentence written in it and guess/understand most of it.