SimGuruDrake has a poll up top in this section for people to vote for what new button they want to see. You either vote for Agree, Awesome or Insightful. And since we get points for getting agrees, SGDrake has already explained in a thread that it was impossible to change the language to Simlish.
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http://store.thesims3.com/myWishlist.html?persona=lisasc360
My stories on this site:
https://forums.thesims.com/en_US/discussion/991317/my-sims-stories/p1?new=1