Impersonators deserve negative feedback. It is hard to see any other option unless there are exceptional circumstances. I see nothing exceptional here that could justify anything else therefore I have left negative tag too.
Never in the history of this forum have impersonators received neutral ratings for trying to defraud somebody else.
So many scams comes from impersonating the administrators of projects, and the telegram channels are full of people imitating the developers of a certain to scam newbies, he has a bad intentional from the start by creating a brand that he is not part of it, it's good that he has a negative so people will know and be warn.