A recent announcement included figures of how many use a certain feature. That made me wonder about the follow-post feature, because to me and to others the way it's implemented is not user-friendly, even though it's a useful feature. So, I'm curious how often and by how many it's used in its current state.
Of course this would not include unregistered (cookie) users; they're still technically users after all (they're allowed to ask and answer on many? sites and may or may not constitute the bulk of all-time users).