Moderating such content might be less traumatic than the job of trawling for atrocity, but spotting bad or incorrect advice requires skill and knowledge. It could be more costly for social media companies.
So far, it is securities regulators concerned with the proper functioning of markets that have taken most interest, but consumer protection and financial conduct regulators should get involved, too.
Financial advice and marketing is rightly heavily regulated. Indeed, the authorities are the biggest finfluencers of all: They have punitive powers that have a more pointed impact than ordinary political voices demanding more be done about, say, hate speech.
When they demand solutions, social media companies will find them.
Paul J. Davies is a Bloomberg Opinion columnist covering banking and finance. He previously worked for the Wall Street Journal and the Financial Times.