This is a point I've been trying to raise several times: to have a good user experience with lots of different languages, users need to be able to define language of their posts and filter posts based on languages they are written in.
This shouldn't be too hard to do.
The Steem community is becoming more global and more non-English languages are written. So why not make the life easier for everybody and let users find posts in certain languages and filter out the ones they don't understand?
For me this has been must-have feature for a long time. I just can't understand what's so hard about it.
Check out better explanation from my comments on Github: Add first class support for languages in posts. If you agree and have Github account, please leave comment demanding this to be implemented soon so that the devs understand how important this is.