What these people do might not be technically illegal, but it’s certainly not ethical either. Say you buy a domain name for your business. Some time later you get a very official looking letter in the mail asking you to renew your domain name with DROA because it’s about to expire. They are counting on you not remembering what company you originally bought the domain from because it most likely wasn’t with DROA. Now say you renew with them. What you actually do is transfer your domain to their service, where you’ll now pay more for less features and bad customer service.