Thread:Support/About MediaWiki:Mw-ui-feature-user-count/en/reply

The PLURAL use in this message is perfectly as it should be. I do not see any problem. It there are 21 users it displays "21 users are" as it should. So it has either been fixed, or I do not understand what you want to tell.

In yout translation, you must use the PLURAL parameters of the target language of your translation. If that has a "n=0" case already, use it. Else append the explicit "|0=No users &hellip;" at the end.