alt Hacker NewsIt matters because it screams "I don't actually know what I'm talking about". And it's not just a bookkeeping error. It's a conceptual error. It's a complete misunderstanding of the time value of money.
As such, it's a self indulgent piece of writing, not a helpful one.
Seems a little harsh and unkind over what's just a fun article. It's not a news publication or a textbook, it's Phrack, lol. I thought it was neat.