It is a scam - Online Chat Moderator bei Cloudworkers: Mitarbeiterbewertung

Their workflow is extremely exaggerated. despite their rigorous verification process before hiring, if you make a substantial amount of money, they find a reason to close and terminate your contract so that you don't get paid. There is a reason they are always hiring, because they are always firing. They are running a scam, chances that your hard work will be rewarded are almost non-existent