If this is used for anonymity it is completely understandable for potential customers to want to know EXACTLY how anonymous this makes the number.
That's like Sony saying "give us your personal info, CC numbers, etc... don't worry we'll take care of the rest" and they turn around and store it in plaintext or md5 on an insecure database.
Also, if it turns out that this service is somehow unlawful or could get shut down / interrupted by law enforcement then I want to know that before I invest in them as a customer.
TL;DR - It's never wrong to question something; especially something like this. If they can't answer the hard questions now then they don't deserve our trust.
That's like Sony saying "give us your personal info, CC numbers, etc... don't worry we'll take care of the rest" and they turn around and store it in plaintext or md5 on an insecure database.
Also, if it turns out that this service is somehow unlawful or could get shut down / interrupted by law enforcement then I want to know that before I invest in them as a customer.
TL;DR - It's never wrong to question something; especially something like this. If they can't answer the hard questions now then they don't deserve our trust.