However, users have no way at present to signal what their tweet is about—all tweets are assumed to be part of a user’s single, undifferentiated ‘lifestream.’ But as discussed above, one person’s lifestream is another’s clutter. If I’m not interested in most of what you’re twitting about, I quickly start to perceive your whole lifestream as clutter. At present there’s nothing you or I can do to affect that, short of you following my ideas, norms, or policies, and (as many commenters and the peasant Dennis wondered aloud) why should you have to do that?