If it's going to be a hodgepodge anyway due to user-generated content, wouldn't that be another argument for not trying too hard to develop their own integrated visual theme?
(Not that I think that "user-generated" content will work well. If any of it is owned, or merely claimed to be owned, by litigious copyright holders, that's a good way to get YouTube to ban gameplay videos. There goes your free advertising. I wonder how Second Life deals with this.)
(Not that I think that "user-generated" content will work well. If any of it is owned, or merely claimed to be owned, by litigious copyright holders, that's a good way to get YouTube to ban gameplay videos. There goes your free advertising. I wonder how Second Life deals with this.)