Gab/Dissenter's growth was based on Nazis and racists being banned. Here's what right-wing pro-Trump news source Fox News says:
https://www.foxnews.com/politics/as-twitter-cracks-down-on-alt-right-aggrieved-members-flee-to-gab
"As Twitter cracks down on alt-right, aggrieved members flee to 'Gab'"
"Gab's Torba says...
“We are growing like wildfire, and I think a lot of those bans and the censorship is really propelling our growth,” he said. “People are looking for a new alternative as their voices have been shut up.”