Scammer’s Number:
Domains Used: Opensea.io
Extra Info: an artist who was new to nft was scammed when reaching out to opensea discord he needed help with burning nft’s and when he went to the opensea.io official discord he reached out for help. Five people direct messaged him he began sharing his screen for assistance and the fake admin (or real) got access to his metamask wallet and drained his account and took ownership of the artists nft’s. One would think that when reaching out for support via the official open sea discord it would be trust worthy but it was not. We attempted to grab the ip via grabify link once the scammer saw this they laughed and exposed themselves to us. They are now selling the artists stolen nft’s on the open sea market.
Welcome 
Welcome to Scammer.info, may you please give us some sort of ID / name of the person you are actually reporting here? I am not sure but the friend of yours might have no other choice than to send a (likely ignored) DCMA request against the site if they are holding their content illegally. Then the only option is to sue them but I assume your friend doesn’t have resources to handle such a lawsuit.
If you need an asset deleted/artificially moved from a blockchain I don’t think you will succeed as blockchains are generally designed to withstand such pulls but I do not know jack crap about NFT markets so I can’t help you there.