Interesting read, take it at face value or not.
Some Food for Thought - Bootloaders, Rooting, Manufacturers, and Carriers
1. Multiple carriers were working collaboratively on a program that would be able to identify rooted users and create a database of their meids
The question I've asked is why? Why do all this; why go through so much trouble. The answer I get is a very logical one and one I understand even if I don't like it. It is about the money. With LTE arriving and the higher charges for data and tethering, carriers feel they must bottle up the ability of users to root their device and access this data, circumventing the expensive tethering charges.
2.Locked bootloaders, and phones were not a Motorola-only issue, that the major manufacturers and carriers had agreed this was the best course of action.(see new HTC devices)
3. The driving forces for device lock down was theft of service by rooted users, the return of non-defective devices due to consumer fraud, and the use of non-approved firmware on the networks.
Some Food for Thought - Bootloaders, Rooting, Manufacturers, and Carriers