You are going to be ICBB again very soon.
Lol Kin that was relevant though, it's the same principle. Besides, this is the VGC forum, everyone has a sense of humour it's okay.
But yeah the info on where a Pokémon's caught doesn't work cross-generationally cause they don't have the locations stored. It's just like, "Came from Sinnoh/Johto" or whatever. A glitched Darkrai is completely indistinguishable from an evented one to a hackchecker. And while a person would be able to manually look at a Darkrai in a hacking program and see if it came from D/P or Pt (since the event was only from Pt and the glitch only JP D/P), hackcheckers and especially not the official VGC ones don't look for this kind of thing. They're all about egg move legality, EV total, and xp points adding up. That kind of thing. And also sometimes hacked items in the bag; these are all the DQ types I'm aware of. Examples of each:
Illegal egg moves: Worlds 2010 Weavile had fake out but wasn't hatched, DQed a few people
EV total: YOU!!! KINNEAS LOL having 512 EVs or so on a hacked pokemon is quite common and gets people DQed most often
Xp points not adding up: Again when hacks have their level changed the xp total isn't immediately matched with the level until they're put in the box or something. This was how it worked with Gen IV anyway, a couple people DQed this way.
and hacked items: this is very rare but poor Min Datoo got DQed in 2009 for having a hacked grass knot TM, which was a pretty dick ass reason. This is the only time I've been aware of this
Also again in 2009 a guy called Luigi got DQed for having two lum berries on his teamsheet after the staff noticed at top 16 rofl. Poor kid. But this is moot now since we don't have teamsheets any more.
As you can see most of the issues with rulebreaking and shitty DQs were in 2009, with a couple in 2010. None really this year cause it's done ingame through the tournament system.
AND A COUPLE OF BOTTOM LINES:
1: If it works on random wifi you're good to go since the hack check is the same as the ingame one for this
and
2: If you're unsure about anything just don't hack, you dumb bell end