I'm very skeptical that deplatforming effectively curbs misinformation. If anything it magnifies it via the Streisand effect. It kicks off headlines, "This is the _______ that big tech doesn't want you to hear!" Focusing on individuals like Spencer and Yiannopoulos is missing the forest for a couple trees. Look at how widespread these people's ideas, as well as anti-vaccine sentiment, had become despite (and perhaps, because of) attempts to crack down on it.