I voted for 8 billion thinking that soon there will be 8 billion people in the world. Basically 1 NEM per person.
The poll is biased... if you're gonna open a vote to go from 4B to 8B... you should also be willing to open a vote to go from 4B to 2B...

I think the idea is that asian cultures really don't like the number 4 but they consider 8 to be very lucky.