Filter users by country
Add something like “Native language” to the user profile
Could it be possible to add a little country flag beside the username?
I'm french, and I attach great importance to spelling and conjugation.
I respect other languages, but I'm not as good at English as at French and so, I always feel compelled to apologize for my mistakes, explaining that I'm not native.
It's just a suggestion, because on the other, I suppose it could allow some natives to choose a foreign country so they don't have to make effort on spelling...