I find the whole thing stupid. The people who are out there racing for real, earning their cars are satisfied. Those who want to dupe are satisfied. Why change anything? I think they should black mark a dupers file, and show a red letter A on the online profile, kinda like the * next to Barry Bonds.
It's like Steroid use in sports. Everyone wants to see the game progress, but no one is going to stop watching until the drugs go away...
I used Duping to save money. I do not grind races. I am a level 30 right now. I have 5 Endurance races, the Formula Gran Turismo and some special events and licenses to complete. I have a few race cars, and a few rare cars that I share with my brother (who is right about where I am. We would race each other all the time with these cars. It was fun to dupe them because we have a different driving style, and will change the tune all the time. Now, we can't.
I totally lost all motivation to play this game, knowing that the 7mil I have is all I have. I have to save to the max cap, just to buy a car that is really a cheat in it of itself, just to start over. It is dumb.
For the record, I do not consider duping cheating. It took some skill, and a lot of time to get a car, gift it, reload the profile, go to the second profile, accept it, and then gift it again, just to save 4mil... It was fun to play with all the old race cars... Now I just want the races beat, so I never have to look at them again.