Anything is better than what we've got. Unifying around one fairly good method that's leaps and bounds better than FPTP and then if that works, trying to use the momentum to get somewhere better than that, seems better than fracturing the effort all over the place while most of the US is still using the world's worst system in the present.
It could be any country. My part of it will be US focused but anywhere in the world that it's happening is welcome.
That's a good point. I'll make a post making it clear that any content related to systems other than FPTP that is getting some traction would be welcome, too. Getting rid of FPTP is the main goal, not RCV for the sake of RCV in opposition to any other system.