He does it for "attention", or to promote his channel...and it works. As of this week he is now more popular than Lady Gaga on Youtube.
This video should help better the understanding of any of those unfamiliar with Athene:
Looks like he failed at trying to rip off Pure Pwnage and let the character get to his head.
* Updated game trainers and cheats daily
* Get notified when new cheats are added
* Request which games get new trainers
* Priority support with any problem