Some messages in the Activity screen in the Wikipedia Android app are "lego": They are concatenated in runtime in a way that is grammatically incorrect in some languages. More specifically, they show the number separately from the text. This assumes that the number is in the beginning of the sentence, as in English, but this is wrong in many languages. To make things even more complicated, in some languages, there is different order for different numbers: for example, in Arabic, 1 comes after the word, 2 is embedded into the word, so the number itself shouldn't be mentioned at all, and most other numbers come before the word.

It's understandable that designers want to show a nice-looking card withe numbers, icons, and charts, but in this case, the text should be just generic and separated from the numbers, and it shouldn't try to form sentences. So instead of saying "{{PLURAL|edit this month|edits this month}}", in a way that matches the number, it can simply say "edits this month", and not use PLURAL at all. As far as I can tell, if the design shows the number distinctly from the text, it looks OK in English, and in all languages.

The problematic messages that I could find are:

• activity_tab_impact_edits_this_month
• activity_tab_impact_edits_last_month
• activity_tab_impact_total_edits
• activity_tab_impact_thanks
• activity_tab_impact_recent_activity_edits
• activity_tab_impact_recent_activity_views

However, there may be more that I missed.

I recommend removing PLURAL support from all of them and coming up with generic labels that can work with any number.