It doesn't seem to fit the definition of astroturfing. [1]
>Astroturfing is the practice of masking the sponsors of a message or organization (e.g., political, advertising, religious or public relations) to make it appear as though it originates from and is supported by a grassroots participant(s).
Are they concealing the source of the messages? It seems like they are just adding more people who have the authority to remove content that violates the TOS.