I also have thought about this. The EXTJ sites and forums seem outdated. I thought about setting up a Spanish sub-reddit with a Wiki version of jwfacts.
The problem is the documentation in Spanish is not as easy to come by.
I also find that the cultural differences make for a different audience. For example, I know JW's who are aware of all the scandals, but don't care because it is a Social club for their family. They don't know, don't care about doctrine. They would be just as happy in any other church.