I think they're saying they own a two letter domain , which if it's a .com is probably worth enough money to sell, put into a S&P 500 index fund, and retire.

https://dofo.com/blog/two-letter-com-domain-names/

If it's a two letter domain at some new esoteric recently created gTLD, quite a lot less.

Since they said they drop the .com after, the only thing I could think of is that they gave a top level domain and can just mail directly to it. For example alex@arpa

See: https://serverfault.com/questions/721927/can-you-have-an-ema...