I went back and reviewed the OP's post, they never used the term "reportage photographer". They did refer to it as a "Branding Shoot", a term used to describe a library of photos to showcase a business. As to noise vs grain, while the two sometimes get used interchangeably especially by those of us, who grew up in the film age, it's typically noise by those in the know in digital.
As I said earlier, I hate to be a cynic, which is why I gave the OP the chance to prove otherwise by asking specific questions requiring specific answers, none of which were answered, another sign the post wasn't on the up and up.
A third possibility is Catfishing - when a person takes information and images, typically from other people, and uses them to create a new identity for themselves and pretends that it is their own. The Catfisher then uses this identity to trick other people into associating with them online. People Catfish for a number of reasons, some don't involve malicious intent, while others directly seek to harm specific people.
Trolling, Flaming, Catfishing, Spam, made the scene just about a week after the internet came online. LOL The relative anonymity of social media is an ideal breeding ground for everything from insecurity, mental illness, harassment, revenge, and criminal intent. There were many flags in the OP, and subsequent followups didn't alleviate any of those flags.