With Cross World PF, the anti-social circle will be complete.
I have my concerns about including a party finder that is cross world along with a raid finder that is also crossworld. Mainly, it will cause being social within the server community to be an afterthought.
I realize there is a need to clear content and shore up the dwindling endgame communities but this seems like an artificial answer to this problem. It will have people clearing content, but not making connections with each other, and not as trusting of the other folks that play the game with them. I'm afraid that social FCs and LS are going to be the ones that suffer the most from this change, I hope I'm wrong, but That is what I'm worried about. How are we going to keep a sense of community in the server if its going to be little more than a glorified waiting room for the instance server?