Not necessarily, @seti123 is doing some amazing work getting elasticsearch working with NodeBB. Perhaps it may work with Russian languages?
Unable to add a user named in Russian letters to the group
-
It just can't find such of user.
-
As MongoDB full text search is in beta, it has some limitations. This has been already addressed to the MongoDB devs: https://jira.mongodb.org/browse/SERVER-8423
-
After this user is renamed himself with English, it still impossible to find and add him to the group.
