Sorry, but I will add a little bit of bitter to this story of success.
I was never in mining, but can someone explain how to earn $1000 in a month mining Ethereum, using old gaming PC ? According to
https://www.cryptocompare.com/mining/calculator/eth?, they need to have around 500Mh/s to be able to earn $1k in one month. Is single PC able to produce that? I went to
https://2cryptocalc.com/, selected 1Qty of NVidia 3090 (I'm not a pro, but greater model number means powerful model imo), and it showed that I would get around $9 for a daily mining. But to be able to get $1k, I need to get $34 per day. That means I need 4 NVidia 3090. According to google, one NVidia 3090 cost $1.5k. A pc with $6k worth GPU does not look like and "old gaming computer" to me.
That's what I've thought when I'm reading the story. And that's where their father to the rescue and really did most of the thing. As they earn that much, they've got a lot. As said, 94 processors but it should 94 graphics card. I think that's an error on the article but with that much equipment that do mine daily, I think that's really possible to earn with that much.