For the time being many articles will be in Spanish (translated from sources in English), with their translations being linked to the original source.
The reviews and special articles will be painfully translated to English, manually one by one.
As for editing any of the articles in general, for now, only users who form part of the user group named «Wiki» will have the required permissions to edit the Wiki. Right now it’s only Z and me the ones who belong to that group, we expect to widen it a bit as the wiki grows.