I think I'm mostly confused about academia really. I get it, it's a nice and easy format to quickly share one's thoughts, so masses are there. Now people who need to speak to the masses (celebrities, politicians) are also there. But academia should be different as I though. Post like this one seem to be rather belonging to a mailing list or a specialised blog or whatever good format that were invented on the internet. Instead it is composed as a series of linked SMS-sized messages on a walled-garden type of platform.