I've interacted with ransomware scammers on several occasions. Each time I couldn't help but be impressed by their operations. In one case, the scammers provided an email address for customer support once the victim paid the ransom. They were courteous, helpful and professional - more so than many customer response teams I've had to interact with in legitimate companies.
To be clear, I also don't recommend paying the ransom, but the work is often impressive.