Clicked join: "Your request was blocked. To protect our website, our security firewall has flagged this request as potentially unsafe." Linux, Firefox, uBlock

Clicked join: "Your request was blocked. To protect our website, our security firewall has flagged this request as potentially unsafe." Linux, Firefox, uBlock Origin. Nothing else special. I've really been looking for an alternative too. Thanks for at least showing me what to expect before sign up. Guess I'll pass.