but then why do you "like" or "+1" the cat videos in the first place, if not to make it known to the world that you liked them?
My point is that I may have 'cat video friends' who, you know, are in to that sort of thing, with whom I may wish to share these sorts of things.
My point is that while it's fine to have my cat video friends, I ought to have the option of not sharing my 'cat fancy' with other groups who may look down on that sort of thing.