The issue with free speech online isn’t that it’s too broad but that online platforms don’t respect it when they encourage their users to shorten their messages (e.g. Twitter characters limit for merely sending a message or the Facebook one to display larger text on a silly background).
The teacher has said a lot of interesting stuff e.g. that users constructed their own bubble filters (which IMHO is due to both trolling and more generally the appearance of conflicting values, which I don’t perceive either as a trans woman or while tracting – we can always discuss a bit – and leads to total institutions, which means that in order to spare marginalized people we need to foster actual conversation and to positively show that we don’t advocate for conflicting values, to listen to our correspondants’) but this "solutions" part was really fucked up; I’ve literally mentioned Lessig’s four cardinal points for activism and he comes up with a sort of GDPR on free speech (which was, on personal data, bullshit, btw, except for the spam because the problem was that it was unexpensive, Hashcoin was meant to solve this and has lead to Bitcoin unfortunately).