He's never made any money in his entire life. He means well, but he's a bit of a hippy, he doesn't like to work much and he has two left hands.
One day he bought an old minivan and told us - my sisters and I - that he'd start a small business delivering groceries to old people in remote villages, and would we like to invest in his company.
Can you guess how much we gave him?
We love our brother, but we'll never see our money back. Been there, done that. So we passed up this investment opportunity.
Well guess what: we ain't big shot Wall Street investors, but Reddit seems just about as adept as my brother at making money - and just about as likely to turn a profit for anybody investing in it.