I don't think the point was that they weren't a fluent English speaker. Many countries like Denmark and Germany have a majority of the population which speaks better English than most Americans.

The reason for mentioning being a non-native speaker presumably was to point out that their own experience with more "niche" job boards would be with sites which are in their native language, or which have more uptake among users of their native language, such that they can't give any specific recommendations to a native English speaker.

Yep, I guess it's not very useful to post a website with no English translation, unless people ask for it. But if someone, who speaks Russian, accidentally finds this thread, I used to look for jobs on rit.work, great place in my opinion.

Thanks a lot for the compliment <3. My first language is Russian, at the moment, trying to get up to speed with Georgian and French in the future.