That already happened with Daily Stormer: https://www.propublica.org/article/spurned-by-major-companie...

I imagine it might be easier to make some niche profit in Cloudflare's business. Not so sure with Twitter, partly because Twitter itself isn't profitable, but also because the main feature of social media services is their ubiquity and userbase. Even if Voat were decidedly a better site than Reddit, it just wasn't that interesting to revisit a sparsely populated discussion site. Especially one weighted toward folks who wanted to discuss the things that Reddit wanted to ban.