Yes, it's unfair by design, while still giving the illusion of fairness. If they obfuscate the process and the rules, some parties will be falsely flagged. But

Yes, it's unfair by design, while still giving the illusion of fairness. If they obfuscate the process and the rules, some parties will be falsely flagged. But the provider can also unfairly allow certain parties to violate the rules, while pretending that there is some secret rule that means they didn't violate anything. It's not the ONLY reason, but it's a big one.