rednaz23: Would it be possible to show what languages each person speaks in their profile by having the representing flag of a language for each country shown?

That's a nice hornets nest, associating languages with country flags. Take for instance 'English', whose flag would you want to use for that? Insult the Brits by using the US flag? Annoy the Welsh by using the Union Jack? Confuse most people by using the English flag? The Canadian flag is out, because that might mean the person speaks French. Australian flag perhaps? And what about French? The flag of France? Belgium? Switzerland? Monaco?

Only a few languages have flags, Esperanto for instance. And then there are languages that are not an official language of any country.

You're better off to use the ISO standard for languages.