Bottle asked if we know it's an Ethereum address. I interpreted your link as evidence that it was. However, any address of the correct length also appears as 0 transactions, rather than "this address does not exist", so it doesn't show it's an Ethereum address.
Perhaps you posted the link to show it is an inactive/unused address. In which case, I have misinterpreted.
Bottle asked if we know it's an Ethereum address. I interpreted your link as evidence that it was. However, any address of the correct length also appears as 0 transactions, rather than "this address does not exist", so it doesn't show it's an Ethereum address.
Perhaps you posted the link to show it is an inactive/unused address. In which case, I have misinterpreted.