The discussion revolves around a Language localization bug where Ellery is unable to change the fields “change date” and “number of replies” to Chinese in their community. Despite trying to change the relevant text fields under “Admin” → “Customize” → “Text” to Chinese, the fields remain in English.
Lhc_fl mentions that the issue is not present on their end and suggests that Ellery changed the incorrect string. Lhc_fl advises using the string js.activity, however, Ellery is unable to find it.
Don provides a possible solution, suggesting that the issue might be theme-related. Don suspects that Ellery is using Sam’s Simple Theme, which overrides the template and adds theme translations. Don advises checking the theme translations under /admin/customize/themes/ to resolve the issue.
Of course, It’s only works if I was correct and you use this theme.
If I was wrong with this - I am pretty sure you will find these translations in a theme or theme component you use because in Discourse core this section is different.