It appears that Nintendo has been aware of the leak for some time, as earlier, on February 21, the company sent a DMCA notice to Discord. The online community platform responded to the request and confirmed that they would remove the content from the server.
However, according to Nintendo, some users were still exchanging images from the leaked art book through private messages, so the publisher contacted Discord once again, a few hours later, with a request for an "immediate review and takedown" of the server. Discord responded the next day, stating that it had given the server a warning for the reported activity.
The situation has now resulted in Nintendo taking action by issuing a DMCA subpoena in an effort to obtain the personal information of the user. If the subpoena is granted, Discord will be obliged to comply.
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