It's not Luis, it's all of them. They have little to no knowledge about any GM vehicle, and the few that do are not allowed to say anything other than the cookie cutter responses we always see. Once in a blue moon they can convince a service manager to swap a door actuator out of warranty, but they have zero influence over any dealership as per franchise laws. They are essentially a PR exercise deployed onto social media sites to make GM vehicle owners feel as is if GM is there for them.
And when they do step out of their bounds to try to help they come up with gems like 'you're side molding is leaking' and 'go to gmpartsdirect' to learn about your headlamps.
All this would be all well and good and slightly amusing if it were harmless. However what ends up happening as a result of misrepresenting their influence, is making owners believe that they can help with their situation, and end up making people with real issues waste valuable time expecting them to intervene on their behalf.
I have a documented event where one of these so called CS agents on another forum pretended to help me with a serious issue I had with an idiot service manager. I was about to pull the truck from the dealership, and didn't cause they said they would resolve the issue on my behalf. One week later my truck was still there and the CS agent went MIA from embarrassment. She showed up on the forum a week later with nothing other than 'you're right my bad'. So not only did they not help, but in fact they added to the harm.
Just ignore them and deal with any issue as best you can on your end.
In any case, that's not what this thread is about.