Registration is necessary to make sure that only authenticated users are using the service.
Every time someone makes a request to the petrol station a member of staff has to stop what they are doing to reply to the request.
If someone decided to harrass a petrol station by making continual requests then the petrol station would be unlikely to want to offer the service for valid users.
We use registration to make sure that we know who is using the service, and if they behave in a malicious way we can block them.
We only use the registration information for two purposes.
- Validate the user
- For sending feedback requests or service announcements