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BillyBurns (aka GNIKTEB on BetKing as seen on the screenshot) appears to be an admin/moderator on BetKing.
His name is red in chat, and so is Dean's. All normal player names are blue. I think it's more likely that he is someone hired by Dean. (program choice is weird though; why Windscribe & ProtonVPN?)
Yes he tends to behave like a lapdog that attacks anybody that exposes scammer Dean Nolan or asks questions that scammer Dean Nolan finds difficult to answer as he would incriminate himself
Given the red GNIKTEB admin user name on betking he has taken it upon himself as a "job" to protect his master scammer Dean Nolan