Yeah I sent that TX, or more accurately, Purse.io did. As an employee and bcoin contributor I wanted to make sure we *could* withdraw to witness V1 addresses. It was actually only spendable *before* taproot activated because it encodes a public key of all `0x01`’s which has no known private key. SO it could only be spent as a pre-taproot-activation anyone-can-spend output which were all collected by 0xB10C https://b10c.me/blog/007-spending-p2tr-pre-activation.
Final trivia tidbit: this was also before bech32m so the address I *actually* withdrew to looked slightly different ;-)