Hi, I have mass deleted his translations from today for "mnc" now and informed him/her in the user talk page. But I cannot verify the translations into yue and would be happy if another person could check the translations before I block him.
Subject: Regarding your Cantonese translations
Content: Hello, I have undone many of your translations. Why don't you talk about why you changed the translations to weird ones? Translations have to be understandable by users.
Quite a number of their translations were made without regard to context, some others contain rarely used words that took me a while to understand. I suspect that they may be a native Chinese user (i.e. non-Cantonese user), translating messages into Chinese and making use of Cantonese words lists to convert the words.
I have reviewed some of their translations. There are acceptable translations, but those are probably made with the help of identical messages.