And they become the seed around which the new community crystallizes.
As the social media and tech oligarchies get emboldened to attack less extreme groups, the people who find themselves deplatformed end up taking refuge in the only sites that are prepared to stand against the ratcheting up of restrictions on speech.
Don't be surprised if, as a result of pressure on WSB, a lot of casual traders find themselves mixing and sympathizing with violent extremists on Gab and other platforms.