The WebPlatform project has been discontinued when the Stewards partnership agreement ended in September 2015. This site has been frozen, and the assets we have created will remain.
We plan to have a system on Kuma by which users can indicate their areas of expertise and offer to be notified when reviews are requested in those areas. A separate set of reviewers would handle requests for editorial (copy-editing) reviews. Whenever a user posts a change to an existing article, they have the option to mark either or both of those. New articles will default to having both options checked on.