Liver King comes to mind. The fitness community has a shitload of them but they're mostly undocumented as most of them offer no real content beyond promising whatever they're shilling will make you look like them, and anyone with more than a passing interest in health/fitness just avoids them like the plague. We periodically get one that crosses over into some other documented territory like this gross guy, or big lenny (extreme proclick; he was the perfect funny cross section of insane and harmless; RIP) and has enough outside appeal/weirdness to support a thread, but they're rarities.