Edit: DoS Attack was successful, all shops are currently offline and I will continue this until Vendor's are able to replace their links everywhere or have them delisted from link directories.
Edit: Hellcat has now replaced all Wallet Addresses with his own and is stealing all funds from the shops, he may still have the shops that haven't been mentioned running as usual because the vendor's are unaware he has been stealing from them, so if you're aware of any other shops ran by him then please comment them below, I have now unlocked this post for commenting.
After reports from multiple vendors who have now disabled their listings in their private vendor stores ran by Hellcat, I have locked down his sub and Dread account. It is apparent that he has been selectively stealing from large orders made on the shops with specific vendor, if not them all. Any vendors who currently have a store with him, I would suggest doing whatever you can to mitigate risks to your customers.