I paid for the Copper membership with the funds we have at 18fyEQXaZQgCbNoE5Qjs6W7Pnqc9Yp4PQD so I kindly request let me defend myself and the reputation of the organization I founded, own and manage.
The BTC address you posted is the same one displayed on the page linked in the death threat:
https://humanrights.foundation/donate-bitcoin.html (archive) (thread archive)
Guess you'll probably have to sue Twitter as well now.