Some have no other way - they have to pay. Special. If the computer on which all information for work is stored is infected. The guide will not understand your explanations that the computer is infected. They need the result
I'm not sure if you understand what I'm writing, because what you write doesn't make much sense. Sure some people are paying (we can see that from the three bitcoin addresses the program uses), but there is no use in doing so. The files won't be decrypted no matter what they do because this particular ransomware is too badly written to understand that they have paid.