There was a time when basic literacy required a level of expertise that most people didn't have, the answer wasn't to start highly regulating those who do have the expertise, the answer was for people to learn.
That analogy does not work. The discussion is about regulating those who can exploit the lack of expertise. Whether or not you have expertise is orthogonal.
To stay with the example, in a world where few people can read but dealing with knowledge written in books is essential for many, it would make sense to regulate lecturers.
Because for many it simply isn't an option. A lot of people need to interact with those platforms for their work or to stay in touch with their social circle. Even if not, it requires technical expertise to find and use alternatives, something that a lot of people don't have.