Scam might be too harsh a word, but it is more than just a pain. They have a pattern of shady business practices, including bullying customers into paying more

Scam might be too harsh a word, but it is more than just a pain. They have a pattern of shady business practices, including bullying customers into paying more for a service that they have a federally-granted monopoly on. They are abusing their position as a DUNS provider to make profit off of uninformed small businesses. That's what earns them the title of a scam. DUNS may very well be a useful service, but if it's managed by a scamming company, then the usefulness of the service erodes.