Does the law protect these online platforms? Even though to demonstrate to defamation certain conditions must happen, I envisioned both small businesses and mega corporations suing these platforms quite easily. Or maybe they do sue all the time but they settle and the public doesn't really get to know about that?
The answer to your question is that since 1996 the sites are protected from the content posted by others by Section 230 of the Communications Decency Act.
The above is general legal and business analysis. It is not "legal advice" but analysis, and different lawyers may analyse this matter differently, especially if there are additional facts...
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