In actuality, Gab bans users for the same reason Twitter does. For instance, when Paul Nehlen tried to organize harassment of another white nationalist figure, Gab banned him. Part of Gab's sales pitch is that it's a refuge for people whose thoughts are somehow too dangerous for Twitter. But contrary to what Gab wants you to believe, Twitter doesn't ban white nationalists. Richard Spencer has a Twitter account. So does Faith Goldy. For that matter, so does Gab, which has posted openly anti-Semitic comments in the past, and still has a verified checkmark!