[The Fifth Horseman]

We cannot use that to threaten him to remove the reviews he stole, nor would that prevent him from doing so again.

We can, however, use it to report him to ESA who will promptly shut down the entire place, at least for a while if not permamently.
From what I see, he's been stealing reviews from multiple sites and apparently has been also leeching their bandwidth (HOTU's, in particular, but I wouldn't be surprised if a certain "source" of his has been Abandonia).

He deserves being shut down.