People here are free to post in any language they want, and there are usually always people who can translate these ratings if really needed. Of course I agree it would be better to have everyone rate in english, but prohibiting rating in your mother language would be discriminating
So i see is no problem then, some people complain about my english too, so, lets rate all in your own language!! [^]
Get ready to get a spanish translator, you will need to use it early [;)]