I don't really think it should be abolished.
I'm Portuguese, and I've seen/know about 6 Portuguese players.
When I meet them, I usually speak Portuguese, because it might be easier to understand/write/read (although I can speak English to a good degree so it isn't that much of a problem to speak it, but it's always easier with your mother language) and you can also engage "private" conversations. Other than that, I sometimes speak in English even with people I know are Portuguese.
I don't really mind about anyone writing in Finnish, Russian or any other language either.