It also seems really, really smart about long-term planning for their target growth audience (e.g. teenagers and college students) in a way that I haven't seen

It also seems really, really smart about long-term planning for their target growth audience (e.g. teenagers and college students) in a way that I haven't seen from any other social platform. If a platform wants to be the center of social life for people that age and keep them long-term, it absolutely needs to be able to handle the statistical nigh-guarantee that most teenagers will break any reasonable TOS at one point or another.