Byteball allows anybody to upload arbitrary data (like docs, pdf, pictures or whatever) on the dag chain which makes it permanently part of the database stored by all full nodes. Now - what if somebody posts criminal stuff like child porn or something and suddenly all full nodes will store this shit forever? I think we need some safeguards against such abuse. Maybe only real ID verified users should be allowed to upload data? Any ideas or thoughts on this? How to ensure legality without censorship?