Description of feature:
Handling of confusingly similar nicknames in MUC in a sensible way.
Prevent use and registration of nicknames that could be confused with previously used, registered nicknames.
Registered nicknames should probably win in case of conflicts.
Helps prevent various forms of trickery and attacks.
Also see #1347
Do we have any code for this yet?
We have util.encodings.confusable.skeleton() and mod_mimicking using it to stop registration of usernames confusable with any previously registered usernames.
Missing is something equivalent to mod_mimicking for MUC nicknames.