Pinkie Pie won his first $50k award by creating a 0-day sandbox escape on Chrome, by chaining 10 different vulnerabilities. He was 19 (now almost 21). Two years before, at 17, he released jailbreakme.com, all by himself, which was a 0-day able to jailbreak all iOS models shipped to date by just visiting a website.

Age means nothing by itself, but the point is correct. The problem is that we don't know how much we can trust bitcoin site owners, as most of them are relatively new with no history to inspect, closed source, and sometimes even run by anonymous users whose experience we can't inspect.