Review-Language-Selection like steam
Since there are countless attempts to "end the english only rule" all declined since "not the whole page is localized", I'd like to offer another way, that can be seen in work on Steam. Let the commentor select the language of the comment while commenting, so that everyone can filter thery languages. so a localization of the site itself isn't necessary, english user are not flooded with "non english" comments, while everyone else have a way to comment in their respective language.
This a good way to handle it, but we unfortunately don’t have the resources to moderate non english comments if we allowed them like this. If we ever have the staff to deal with other languages, then we’ll revisit this.