I recommended this website to my friend. He just got back to me saying, that wallet he just generated had previous in and out transactions starting in Jan 2019 and ending last month - March 2020. I spoke with him extensively, and I can't find any reasonable explanation. This is the address he "generated" two days ago: https://www.blockchain.com/btc/address/1PoZHV4rrftuv8YuoDgRqji1syuSw141q8

Any ideas?