I actually agree, but I'm not sure that I would put that assertion to the force of law. There is then the conundrum of what happens in the face of selective enforcement (and there will be selective enforcement). Can someone then sue Reddit for not suppressing an investigation that doxxed them quickly enough, or at all, given that Reddit has suppressed other investigations?
If you do manage to always comply with a law saying this much it will only be by suppressing otherwise valid speech, which is also problematic. Also, can someone sue Reddit for being suppressed unnecessarily, or is it merely an inconvenience?