Games openning up portals to other systems is never a good idea.
Many years ago I was playing a text-based game called
Gemstone II (now it's on IV). The community was fun and mature, and the entire map was not crowded.
At some point a portal was openned to allow AOL members access to the game. From that point on, the entire map was flooded with people, text was scrolling out of control with people asking, "Someone help me!!!!!!", and the like.
The entire role-playing excitement that was with the game sank in the rising tide of immature players looking for a quick fix.
Fortunately, I only play PC games on a PC and don't play any console games...except for an occasional Katamari Damaci.