MAy be someone made a mistake by putting 15 btc fees instead of 15 Mbtc (noob mistake ?)
How noob can someone be to spend.. umm almost $16.000 on fees? We are talking about tens of thousands here. That guy either really didn't know about Bitcoin too much, a kid played with his phone or he wanted to vanish his black money and didn't know what to do, lol. But I am almost 100% sure he didn't do it by mistake. I would be careful with every step I take if I were him.