I am saying this: from now all the progress (engineering, ranks, weapons, ships, credits, etc) that you make in open, stays in open and all the progress that you make in solo/pg stays in solo/pg, so the people would have to decide to continue their progress interacting with people and friend or just play solo.
Ok, then what makes you think creating this situation would bring more players together? How would segregating assets increase player interaction? I think we would see pretty much what we have now.