One of the issues on that is that there does need to be more study on how we can actually address this modern context. There are many distinctions and different types of approaches that can be adopted to different contexts, so distinctions need to be drawn between speech whose character is difficult to determine or is maybe on the line.
Targeted harassment and privacy violations might have a stronger claim based on an individual. In situations where one person is the subject of an avalanche of attacks, there might be a need to act far more quickly and reactively to remove that content, although that might not be about personal responsibility. Again, these are all complex issues that have to be targeted to the different types of harms that exist.
Another thing I would highlight about non-criminal administrative law fora is that they can allow for alternative dispute resolution mechanisms as well. We don't need to be talking about harsh penalties on individuals who post content that is perhaps on the line. We can actually look at more constructive models.