Critics have weighed in on proposals to change or scrap Section 230 of the Communications Decency Act, which protects online companies from being sued for what users share.

Section 230 was thrust into the limelight after President Trump claimed it’s being used to silence voices after some of his tweets were flagged as containing misinformation.

However, Section 230 consists of just 26 words and is designed to protect free speech:

“No provider or user of an...