3. Whenever someone talks about structural problems like ^^^ there is a common response, which I'll paraphrase as "people are going to be weird and abusive no matter what, and [tech/design/policy] can't change that."
Yes, people are going to be weird jerks sometimes, but systems and structures are *by far* our best levers for changing behavior, and I think it's bizarre that this gets trotted out even by people who believe that, for instance, anti-viral features (systems!) are very successful.