- You can choose multiple languages you can read & write it. Each time pick one, a new pull down window appears defaulting to non so that you can pick another one. This would be for bilingual people.
- Each language listed, would be written in it's own language.
- The request to choose a language would itself be in several languages.
- You can choose partial knowledge of any language, under the full language, would be the equivalent of "I know some XXXX" in that language.
- Picking a written language could be required, if you do not know how to read/write any language, illiterate would be a option. (it could possibly be default) Someone helping them sign up could help them pick this option if it is not default.
- Possibly the persons native tongue could show by their name.
It would be nice to know if someone is silent because they are lazy with typing, or because they don't know your language.
If you know what language they read/write, and you know that language too, you can use it to communicate with them.
It would be a hell of alot more useful then choosing what country you are from. (yes you might be able to guess from that, but many countries have multiple languages used by many people.)