I have looked at Home a bit. I imagine it could be neat to meet previously met friends in there to start a game, but I'm not one to easily start talking to random avatars in a not-directly-game-based setting (as opposed to WoW where you can form guilds and work together).
However, I agree with the point 'civver' made. Netiquette would indicate that if someone in Home starts talking to you, and blunt_killa7329 seemed friendly enough at the start, a response would be appropriate. Or at least moving on quickly as opposed to just standing there, which the author seems to have done repeatedly to various people for an hour, despite a stated intention to play a specific arcade game. And, looking back over the article, I wonder how going into an online service to play a single player game and avoid interaction with people would help the loneliness the author notes he is suffering at the start of the article significantly more than playing a single player game outside of Home. It would seem like a more appropriate solution, for example, would be to play Warhawk, wherein you have teammates and enemies and can find some sort of interaction even if you do not use voice communication.
With regards to Home, it should be noted that the PS3 lets you hook up a USB keyboard, so that you can properly type to people if you desire. There are also settings in Home, if I recall correctly, to turn off chat broadcast to the room from other users so that you don't have to see it all, thus preventing interruption of the arcade game (though the couple should have been private messaging).
I would like to see the single player content in Home have an option to become your avatar's only focus. It would be great if the theatre would let you launch a screen that let you choose trailers to watch (and bandwidth to watch them at), and let you focus solely on the trailer, rather than watching from within the room where there are avatars walking around randomly. The author probably would have been happy if the arcade had functioned in such a fashion, filling the screen and automatically blocking talk from the room.