Originally Posted by drelbs
Only once. Not much fun unless you're sitting next to the other player and/or are on the phone so you can coordinate.
That mirrors my sentiments. Playing with my kids in the same room where we can talk to one another and instantly say, "hey, come over here", "cut that out", "Dylan, you idiot!", it's fun, but, otherwise, I can't see the point unless it's for a pre-negotiated trading session, which is also of niche use.
I'm glad they implemented the functionality in the game engine, but, given the game's meta design, it doesn't lend itself too well to random hook ups. Even if you avoid griefers and thieves, you've got a single player oriented mining-builder where building a single structure of note involves far more time than any two random people are going to devote to a gaming session (which probably goes a long way toward explaining the preponderance of asshats - not only do random gaming hookups invariably breed asshats, the NON "mass cooperative" nature of the game concentrates them).