OT: ITSK33N.TV E
Region of Origin: Kalos
Ability: Bad Dreams
Location Met & Level Met: Can't Tell :-/
Where/how: Linked trade through pokecommunity.
IV/Characteristic: Perfect across, Michievous
Effort Values: Maxed out Sp. Atk and Speed.
Unfortunately, that Darkrai is definitely a hack. Not only is the OT a dead give-away (.TV OTs come from Twitch channels run by bots that trade out hacks), but it is impossible to catch a shiny Darkrai outside of the Member Pass event in Pokemon Platinum (and only Pokemon Platinum), which means that the only region of origin that it may have is Sinnoh. Whether you decide to release it or keep it for personal use is up to you.
Thanks for the check, ;,-(. Looks like i'mma have to buy Diamond and do the void glitch after all.
Just giving you a heads up, Member Pass Darkrai obtained in Pokemon Diamond is still illegal, as is Darkrai obtained via the void glitch or a hacked Member Pass. The event was only made available specifically in Platinum. I wouldn't spend money to obtain another illegal copy of Darkrai.