Well, the question must be asked; the people who do enjoy Twitter, Snapchat, Imgur, et cetera, and would not like it here, do we truly need them? Would they need us?
This particular environment is dated. However, I believe that it is part of what makes it what it is, and the drawbacks of being dated are not quite worth changing to adress. It is similar to Dwarf Fortress itself, I suppose. Perhaps things will change, or perhaps the day might come when changes must be made to conserve the development of the game, and the community that is part of it. However, that change must be made in service for the game, for Toady's vision and the players, not in an effort to draw more people in, who might not be very interested. The worst thing one can do is to upset something good for the sake of someone who would not ask for it, nor be very interested in it regardless.
As an aside, my word, if Dwarf Fortress were an ordinary project, run as an ordinary project, it would surely have peetered out into history by now, after so many years. There cannot be many other projects in development that has kept on going quite so steadily for a decade as Toady's dwarven magnum opus has. Were it the model of a modern game project, a slim, trimmed, visual and stream-lined dwarf-game, Kickstarted or crowdfunded in the traditional manner, I am quite sure it would have been just another former project by now. Perhaps there would have been a decent game with dwarves in it at some point (I believe there would have been), but it would not have been this growing, expanding oddity of a game, and the world would be worse off without it.