You're right, that's what they do (mostly). That doesn't mean they're not useful. Plenty of services have been creating around "reorganizing" (more efficiently)

You're right, that's what they do (mostly). That doesn't mean they're not useful. Plenty of services have been creating around "reorganizing" (more efficiently) sources of information. Also, once you get some volume of events and user info, you can do more interesting things with this data.