According to the article, "the UN believes that online platforms should be (a) generally responsible for the actions of their users and (b) specifically responsible for making sure those people aren’t harassers."

Many websites already have problems with flippant takedown notices through the DMCA. This article leads me to believe that the UN wants to apply a similar process to eliminate "harassment", which is a fairly nebulous term. The benefits of this proposal seem minuscule, while the costs of making "online platforms generally responsible for the actions of their users" would be enormous. Why would anyone think this is a good idea?