I'm pretty sure every registrar does this. It is in their interest: they remind you to pay so they get your money instead of some other registra getting a poacher's money.
A key problem is people not seeing the reminders. Perhaps they get lost in a sea of spam. Perhaps they get accidently calssifed as spem themselves. Perhaps the contact information for the domain isn't kept up-to-date and the reminders end up in an email account that is no longer monitored.
A key problem is people not seeing the reminders. Perhaps they get lost in a sea of spam. Perhaps they get accidently calssifed as spem themselves. Perhaps the contact information for the domain isn't kept up-to-date and the reminders end up in an email account that is no longer monitored.