If you logged onto Tumblr for the first time as a tween without knowing what depression was, you certainly weren't going to log off without learning. If you weren't a teenager on Tumblr in the early 2010s, it's difficult even to describe how insane the content was regarding depression and mental health issues. It was a nearly constant conversation, with Tumblr users sharing graphic details of their experiences with self-harm and suicide. Sure, these posts built a community in some aspects, but…