The Commons community decided — with an overwhelming consensus — to enable the Translate extension.
Since there hasn't been any discussion about configuration details, we'll just go with the default settings for now (with bureaucrats being able to add and remove users from the 'translationadmin' group) and with settings suggested by Niklas in T43585#452071.
If the community decides to allow admins to add and removes themselves from that group, I'll fill another bug and commit the necessary patch.
Version: wmf-deployment
Severity: enhancement
URL: https://commons.wikimedia.org/wiki/Commons:Requests_for_comment/Translate_extension#Discussions
See Also: T44790